Home / 897,421.20-1,346,131.80-543,127.20

Finding the Fourth Proportional to 897,421.20, 1,346,131.80 and 543,127.20

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Solution

The fourth proportional to 897,421.20, 1,346,131.80 and 543,127.20 is: 814,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,421.20 : 1,346,131.80 = 543,127.20 : x
  2. Step 2: Convert to fraction form
    897,421.20/1,346,131.80 = 543,127.20/x
  3. Step 3: Cross multiply
    897,421.20x = 1,346,131.80 × 543,127.20
  4. Step 4: Simplify right side
    897,421.20x = 731,120,795,364.96
  5. Step 5: Solve for x
    x = 731,120,795,364.96/897,421.20
  6. Step 6: Final answer
    x = 814,690.80

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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.