Home / 1,020,780.20-1,531,170.30-523,116.20

Finding the Fourth Proportional to 1,020,780.20, 1,531,170.30 and 523,116.20

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Solution

The fourth proportional to 1,020,780.20, 1,531,170.30 and 523,116.20 is: 784,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,780.20 : 1,531,170.30 = 523,116.20 : x
  2. Step 2: Convert to fraction form
    1,020,780.20/1,531,170.30 = 523,116.20/x
  3. Step 3: Cross multiply
    1,020,780.20x = 1,531,170.30 × 523,116.20
  4. Step 4: Simplify right side
    1,020,780.20x = 800,979,988,888.86
  5. Step 5: Solve for x
    x = 800,979,988,888.86/1,020,780.20
  6. Step 6: Final answer
    x = 784,674.30

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Double scale
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Similar ratio
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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.