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Finding the Fourth Proportional to 615,869.53, 849,891.39 and 357,892.22

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Solution

The fourth proportional to 615,869.53, 849,891.39 and 357,892.22 is: 493,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,869.53 : 849,891.39 = 357,892.22 : x
  2. Step 2: Convert to fraction form
    615,869.53/849,891.39 = 357,892.22/x
  3. Step 3: Cross multiply
    615,869.53x = 849,891.39 × 357,892.22
  4. Step 4: Simplify right side
    615,869.53x = 304,169,517,108.62
  5. Step 5: Solve for x
    x = 304,169,517,108.62/615,869.53
  6. Step 6: Final answer
    x = 493,886.29

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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.