Home / 754,000.40-1,131,000.60-671,331.80

Finding the Fourth Proportional to 754,000.40, 1,131,000.60 and 671,331.80

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Solution

The fourth proportional to 754,000.40, 1,131,000.60 and 671,331.80 is: 1,006,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,000.40 : 1,131,000.60 = 671,331.80 : x
  2. Step 2: Convert to fraction form
    754,000.40/1,131,000.60 = 671,331.80/x
  3. Step 3: Cross multiply
    754,000.40x = 1,131,000.60 × 671,331.80
  4. Step 4: Simplify right side
    754,000.40x = 759,276,668,599.08
  5. Step 5: Solve for x
    x = 759,276,668,599.08/754,000.40
  6. Step 6: Final answer
    x = 1,006,997.70

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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.