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Finding the Fourth Proportional to 615,889.17, 849,951.32 and 354,244.04

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Solution

The fourth proportional to 615,889.17, 849,951.32 and 354,244.04 is: 488,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,889.17 : 849,951.32 = 354,244.04 : x
  2. Step 2: Convert to fraction form
    615,889.17/849,951.32 = 354,244.04/x
  3. Step 3: Cross multiply
    615,889.17x = 849,951.32 × 354,244.04
  4. Step 4: Simplify right side
    615,889.17x = 301,090,189,400.13
  5. Step 5: Solve for x
    x = 301,090,189,400.13/615,889.17
  6. Step 6: Final answer
    x = 488,870.74

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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.