Home / 676,803.60-1,015,205.40-424,861.20

Finding the Fourth Proportional to 676,803.60, 1,015,205.40 and 424,861.20

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Solution

The fourth proportional to 676,803.60, 1,015,205.40 and 424,861.20 is: 637,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,803.60 : 1,015,205.40 = 424,861.20 : x
  2. Step 2: Convert to fraction form
    676,803.60/1,015,205.40 = 424,861.20/x
  3. Step 3: Cross multiply
    676,803.60x = 1,015,205.40 × 424,861.20
  4. Step 4: Simplify right side
    676,803.60x = 431,321,384,490.48
  5. Step 5: Solve for x
    x = 431,321,384,490.48/676,803.60
  6. Step 6: Final answer
    x = 637,291.80

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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.