Home / 921,674.64-1,271,984.94-513,909.30

Finding the Fourth Proportional to 921,674.64, 1,271,984.94 and 513,909.30

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Solution

The fourth proportional to 921,674.64, 1,271,984.94 and 513,909.30 is: 709,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,674.64 : 1,271,984.94 = 513,909.30 : x
  2. Step 2: Convert to fraction form
    921,674.64/1,271,984.94 = 513,909.30/x
  3. Step 3: Cross multiply
    921,674.64x = 1,271,984.94 × 513,909.30
  4. Step 4: Simplify right side
    921,674.64x = 653,684,890,125.94
  5. Step 5: Solve for x
    x = 653,684,890,125.94/921,674.64
  6. Step 6: Final answer
    x = 709,236.06

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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.