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Finding the Fourth Proportional to 398,549.60, 596,949.60 and 346,061.60

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Solution

The fourth proportional to 398,549.60, 596,949.60 and 346,061.60 is: 518,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,549.60 : 596,949.60 = 346,061.60 : x
  2. Step 2: Convert to fraction form
    398,549.60/596,949.60 = 346,061.60/x
  3. Step 3: Cross multiply
    398,549.60x = 596,949.60 × 346,061.60
  4. Step 4: Simplify right side
    398,549.60x = 206,581,333,695.36
  5. Step 5: Solve for x
    x = 206,581,333,695.36/398,549.60
  6. Step 6: Final answer
    x = 518,332.81

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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.