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Finding the Fourth Proportional to 555,248.66, 766,258.88 and 313,567.56

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Solution

The fourth proportional to 555,248.66, 766,258.88 and 313,567.56 is: 432,732.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,248.66 : 766,258.88 = 313,567.56 : x
  2. Step 2: Convert to fraction form
    555,248.66/766,258.88 = 313,567.56/x
  3. Step 3: Cross multiply
    555,248.66x = 766,258.88 × 313,567.56
  4. Step 4: Simplify right side
    555,248.66x = 240,273,927,329.93
  5. Step 5: Solve for x
    x = 240,273,927,329.93/555,248.66
  6. Step 6: Final answer
    x = 432,732.12

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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.