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Finding the Fourth Proportional to 676,521.60, 932,955.58 and 404,545.20

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Solution

The fourth proportional to 676,521.60, 932,955.58 and 404,545.20 is: 557,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,521.60 : 932,955.58 = 404,545.20 : x
  2. Step 2: Convert to fraction form
    676,521.60/932,955.58 = 404,545.20/x
  3. Step 3: Cross multiply
    676,521.60x = 932,955.58 × 404,545.20
  4. Step 4: Simplify right side
    676,521.60x = 377,422,701,702.22
  5. Step 5: Solve for x
    x = 377,422,701,702.22/676,521.60
  6. Step 6: Final answer
    x = 557,887.14

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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.