Home / 1,011,354.10-1,515,281.55-656,185.30

Finding the Fourth Proportional to 1,011,354.10, 1,515,281.55 and 656,185.30

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Solution

The fourth proportional to 1,011,354.10, 1,515,281.55 and 656,185.30 is: 983,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,354.10 : 1,515,281.55 = 656,185.30 : x
  2. Step 2: Convert to fraction form
    1,011,354.10/1,515,281.55 = 656,185.30/x
  3. Step 3: Cross multiply
    1,011,354.10x = 1,515,281.55 × 656,185.30
  4. Step 4: Simplify right side
    1,011,354.10x = 994,305,478,471.22
  5. Step 5: Solve for x
    x = 994,305,478,471.22/1,011,354.10
  6. Step 6: Final answer
    x = 983,142.78

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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.