Home / 786,425.40-1,178,082.90-730,438.20

Finding the Fourth Proportional to 786,425.40, 1,178,082.90 and 730,438.20

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Solution

The fourth proportional to 786,425.40, 1,178,082.90 and 730,438.20 is: 1,094,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,425.40 : 1,178,082.90 = 730,438.20 : x
  2. Step 2: Convert to fraction form
    786,425.40/1,178,082.90 = 730,438.20/x
  3. Step 3: Cross multiply
    786,425.40x = 1,178,082.90 × 730,438.20
  4. Step 4: Simplify right side
    786,425.40x = 860,516,752,926.78
  5. Step 5: Solve for x
    x = 860,516,752,926.78/786,425.40
  6. Step 6: Final answer
    x = 1,094,212.82

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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.