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Finding the Fourth Proportional to 641,730.93, 885,599.13 and 351,337.59

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Solution

The fourth proportional to 641,730.93, 885,599.13 and 351,337.59 is: 484,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,730.93 : 885,599.13 = 351,337.59 : x
  2. Step 2: Convert to fraction form
    641,730.93/885,599.13 = 351,337.59/x
  3. Step 3: Cross multiply
    641,730.93x = 885,599.13 × 351,337.59
  4. Step 4: Simplify right side
    641,730.93x = 311,144,264,040.30
  5. Step 5: Solve for x
    x = 311,144,264,040.30/641,730.93
  6. Step 6: Final answer
    x = 484,851.59

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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.