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Finding the Fourth Proportional to 615,487.38, 849,514.30 and 360,920.58

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Solution

The fourth proportional to 615,487.38, 849,514.30 and 360,920.58 is: 498,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,487.38 : 849,514.30 = 360,920.58 : x
  2. Step 2: Convert to fraction form
    615,487.38/849,514.30 = 360,920.58/x
  3. Step 3: Cross multiply
    615,487.38x = 849,514.30 × 360,920.58
  4. Step 4: Simplify right side
    615,487.38x = 306,607,193,874.29
  5. Step 5: Solve for x
    x = 306,607,193,874.29/615,487.38
  6. Step 6: Final answer
    x = 498,153.50

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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.