Home / 747,602.64-1,031,702.40-408,063.60

Finding the Fourth Proportional to 747,602.64, 1,031,702.40 and 408,063.60

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Solution

The fourth proportional to 747,602.64, 1,031,702.40 and 408,063.60 is: 563,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,602.64 : 1,031,702.40 = 408,063.60 : x
  2. Step 2: Convert to fraction form
    747,602.64/1,031,702.40 = 408,063.60/x
  3. Step 3: Cross multiply
    747,602.64x = 1,031,702.40 × 408,063.60
  4. Step 4: Simplify right side
    747,602.64x = 421,000,195,472.64
  5. Step 5: Solve for x
    x = 421,000,195,472.64/747,602.64
  6. Step 6: Final answer
    x = 563,133.64

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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.