Home / 721,046.80-1,081,570.20-347,798.80

Finding the Fourth Proportional to 721,046.80, 1,081,570.20 and 347,798.80

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Solution

The fourth proportional to 721,046.80, 1,081,570.20 and 347,798.80 is: 521,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,046.80 : 1,081,570.20 = 347,798.80 : x
  2. Step 2: Convert to fraction form
    721,046.80/1,081,570.20 = 347,798.80/x
  3. Step 3: Cross multiply
    721,046.80x = 1,081,570.20 × 347,798.80
  4. Step 4: Simplify right side
    721,046.80x = 376,168,817,675.76
  5. Step 5: Solve for x
    x = 376,168,817,675.76/721,046.80
  6. Step 6: Final answer
    x = 521,698.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.