Home / 691,728.40-1,037,592.60-424,622.80

Finding the Fourth Proportional to 691,728.40, 1,037,592.60 and 424,622.80

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Solution

The fourth proportional to 691,728.40, 1,037,592.60 and 424,622.80 is: 636,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,728.40 : 1,037,592.60 = 424,622.80 : x
  2. Step 2: Convert to fraction form
    691,728.40/1,037,592.60 = 424,622.80/x
  3. Step 3: Cross multiply
    691,728.40x = 1,037,592.60 × 424,622.80
  4. Step 4: Simplify right side
    691,728.40x = 440,585,475,071.28
  5. Step 5: Solve for x
    x = 440,585,475,071.28/691,728.40
  6. Step 6: Final answer
    x = 636,934.20

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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.