Home / 915,387.16-1,263,309.12-507,616.90

Finding the Fourth Proportional to 915,387.16, 1,263,309.12 and 507,616.90

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Solution

The fourth proportional to 915,387.16, 1,263,309.12 and 507,616.90 is: 700,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,387.16 : 1,263,309.12 = 507,616.90 : x
  2. Step 2: Convert to fraction form
    915,387.16/1,263,309.12 = 507,616.90/x
  3. Step 3: Cross multiply
    915,387.16x = 1,263,309.12 × 507,616.90
  4. Step 4: Simplify right side
    915,387.16x = 641,277,059,236.13
  5. Step 5: Solve for x
    x = 641,277,059,236.13/915,387.16
  6. Step 6: Final answer
    x = 700,552.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.