Home / 712,301.60-1,068,452.40-680,808.80

Finding the Fourth Proportional to 712,301.60, 1,068,452.40 and 680,808.80

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Solution

The fourth proportional to 712,301.60, 1,068,452.40 and 680,808.80 is: 1,021,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,301.60 : 1,068,452.40 = 680,808.80 : x
  2. Step 2: Convert to fraction form
    712,301.60/1,068,452.40 = 680,808.80/x
  3. Step 3: Cross multiply
    712,301.60x = 1,068,452.40 × 680,808.80
  4. Step 4: Simplify right side
    712,301.60x = 727,411,796,301.12
  5. Step 5: Solve for x
    x = 727,411,796,301.12/712,301.60
  6. Step 6: Final answer
    x = 1,021,213.20

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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.