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Finding the Fourth Proportional to 498,360, 687,800.16 and 328,946.88

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Solution

The fourth proportional to 498,360, 687,800.16 and 328,946.88 is: 453,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,360 : 687,800.16 = 328,946.88 : x
  2. Step 2: Convert to fraction form
    498,360/687,800.16 = 328,946.88/x
  3. Step 3: Cross multiply
    498,360x = 687,800.16 × 328,946.88
  4. Step 4: Simplify right side
    498,360x = 226,249,716,695.50
  5. Step 5: Solve for x
    x = 226,249,716,695.50/498,360
  6. Step 6: Final answer
    x = 453,988.52

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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.