Home / 921,572.64-1,271,844.18-513,806.49

Finding the Fourth Proportional to 921,572.64, 1,271,844.18 and 513,806.49

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Solution

The fourth proportional to 921,572.64, 1,271,844.18 and 513,806.49 is: 709,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,572.64 : 1,271,844.18 = 513,806.49 : x
  2. Step 2: Convert to fraction form
    921,572.64/1,271,844.18 = 513,806.49/x
  3. Step 3: Cross multiply
    921,572.64x = 1,271,844.18 × 513,806.49
  4. Step 4: Simplify right side
    921,572.64x = 653,481,793,952.73
  5. Step 5: Solve for x
    x = 653,481,793,952.73/921,572.64
  6. Step 6: Final answer
    x = 709,094.18

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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.