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Finding the Fourth Proportional to 887,415.67, 1,224,730.92 and 514,960.64

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Solution

The fourth proportional to 887,415.67, 1,224,730.92 and 514,960.64 is: 710,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,415.67 : 1,224,730.92 = 514,960.64 : x
  2. Step 2: Convert to fraction form
    887,415.67/1,224,730.92 = 514,960.64/x
  3. Step 3: Cross multiply
    887,415.67x = 1,224,730.92 × 514,960.64
  4. Step 4: Simplify right side
    887,415.67x = 630,688,215,894.52
  5. Step 5: Solve for x
    x = 630,688,215,894.52/887,415.67
  6. Step 6: Final answer
    x = 710,702.14

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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.