Home / 786,057.26-1,179,335.10-280,607.40

Finding the Fourth Proportional to 786,057.26, 1,179,335.10 and 280,607.40

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Solution

The fourth proportional to 786,057.26, 1,179,335.10 and 280,607.40 is: 421,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,057.26 : 1,179,335.10 = 280,607.40 : x
  2. Step 2: Convert to fraction form
    786,057.26/1,179,335.10 = 280,607.40/x
  3. Step 3: Cross multiply
    786,057.26x = 1,179,335.10 × 280,607.40
  4. Step 4: Simplify right side
    786,057.26x = 330,930,156,139.74
  5. Step 5: Solve for x
    x = 330,930,156,139.74/786,057.26
  6. Step 6: Final answer
    x = 421,000.06

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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.