Home / 712,188.40-1,068,428.40-239,213.20

Finding the Fourth Proportional to 712,188.40, 1,068,428.40 and 239,213.20

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Solution

The fourth proportional to 712,188.40, 1,068,428.40 and 239,213.20 is: 358,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,188.40 : 1,068,428.40 = 239,213.20 : x
  2. Step 2: Convert to fraction form
    712,188.40/1,068,428.40 = 239,213.20/x
  3. Step 3: Cross multiply
    712,188.40x = 1,068,428.40 × 239,213.20
  4. Step 4: Simplify right side
    712,188.40x = 255,582,176,534.88
  5. Step 5: Solve for x
    x = 255,582,176,534.88/712,188.40
  6. Step 6: Final answer
    x = 358,868.77

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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.