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Finding the Fourth Proportional to 615,854.69, 849,870.95 and 357,877.44

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Solution

The fourth proportional to 615,854.69, 849,870.95 and 357,877.44 is: 493,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,854.69 : 849,870.95 = 357,877.44 : x
  2. Step 2: Convert to fraction form
    615,854.69/849,870.95 = 357,877.44/x
  3. Step 3: Cross multiply
    615,854.69x = 849,870.95 × 357,877.44
  4. Step 4: Simplify right side
    615,854.69x = 304,149,640,140.04
  5. Step 5: Solve for x
    x = 304,149,640,140.04/615,854.69
  6. Step 6: Final answer
    x = 493,865.91

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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.