Home / 712,000.10-1,068,000.15-374,579.30

Finding the Fourth Proportional to 712,000.10, 1,068,000.15 and 374,579.30

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Solution

The fourth proportional to 712,000.10, 1,068,000.15 and 374,579.30 is: 561,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,000.10 : 1,068,000.15 = 374,579.30 : x
  2. Step 2: Convert to fraction form
    712,000.10/1,068,000.15 = 374,579.30/x
  3. Step 3: Cross multiply
    712,000.10x = 1,068,000.15 × 374,579.30
  4. Step 4: Simplify right side
    712,000.10x = 400,050,748,586.90
  5. Step 5: Solve for x
    x = 400,050,748,586.90/712,000.10
  6. Step 6: Final answer
    x = 561,868.95

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Double scale
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Similar ratio
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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.