Home / 712,138.80-1,068,899.40-357,553.20

Finding the Fourth Proportional to 712,138.80, 1,068,899.40 and 357,553.20

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Solution

The fourth proportional to 712,138.80, 1,068,899.40 and 357,553.20 is: 536,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,138.80 : 1,068,899.40 = 357,553.20 : x
  2. Step 2: Convert to fraction form
    712,138.80/1,068,899.40 = 357,553.20/x
  3. Step 3: Cross multiply
    712,138.80x = 1,068,899.40 × 357,553.20
  4. Step 4: Simplify right side
    712,138.80x = 382,188,400,948.08
  5. Step 5: Solve for x
    x = 382,188,400,948.08/712,138.80
  6. Step 6: Final answer
    x = 536,676.84

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1.5x scale

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.