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Finding the Fourth Proportional to 498,263.52, 687,605.04 and 297,055.20

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Solution

The fourth proportional to 498,263.52, 687,605.04 and 297,055.20 is: 409,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,263.52 : 687,605.04 = 297,055.20 : x
  2. Step 2: Convert to fraction form
    498,263.52/687,605.04 = 297,055.20/x
  3. Step 3: Cross multiply
    498,263.52x = 687,605.04 × 297,055.20
  4. Step 4: Simplify right side
    498,263.52x = 204,256,652,678.21
  5. Step 5: Solve for x
    x = 204,256,652,678.21/498,263.52
  6. Step 6: Final answer
    x = 409,937.00

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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.