Home / 651,037.20-975,972.60-426,505.20

Finding the Fourth Proportional to 651,037.20, 975,972.60 and 426,505.20

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Solution

The fourth proportional to 651,037.20, 975,972.60 and 426,505.20 is: 639,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,037.20 : 975,972.60 = 426,505.20 : x
  2. Step 2: Convert to fraction form
    651,037.20/975,972.60 = 426,505.20/x
  3. Step 3: Cross multiply
    651,037.20x = 975,972.60 × 426,505.20
  4. Step 4: Simplify right side
    651,037.20x = 416,257,388,957.52
  5. Step 5: Solve for x
    x = 416,257,388,957.52/651,037.20
  6. Step 6: Final answer
    x = 639,375.74

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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.