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Finding the Fourth Proportional to 922,978.96, 1,384,702.28 and 283,315.12

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Solution

The fourth proportional to 922,978.96, 1,384,702.28 and 283,315.12 is: 425,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,978.96 : 1,384,702.28 = 283,315.12 : x
  2. Step 2: Convert to fraction form
    922,978.96/1,384,702.28 = 283,315.12/x
  3. Step 3: Cross multiply
    922,978.96x = 1,384,702.28 × 283,315.12
  4. Step 4: Simplify right side
    922,978.96x = 392,307,092,622.47
  5. Step 5: Solve for x
    x = 392,307,092,622.47/922,978.96
  6. Step 6: Final answer
    x = 425,044.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.