Home / 709,406.80-1,064,110.20-471,979.60

Finding the Fourth Proportional to 709,406.80, 1,064,110.20 and 471,979.60

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Solution

The fourth proportional to 709,406.80, 1,064,110.20 and 471,979.60 is: 707,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,406.80 : 1,064,110.20 = 471,979.60 : x
  2. Step 2: Convert to fraction form
    709,406.80/1,064,110.20 = 471,979.60/x
  3. Step 3: Cross multiply
    709,406.80x = 1,064,110.20 × 471,979.60
  4. Step 4: Simplify right side
    709,406.80x = 502,238,306,551.92
  5. Step 5: Solve for x
    x = 502,238,306,551.92/709,406.80
  6. Step 6: Final answer
    x = 707,969.40

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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.