Home / 651,034.20-975,968.10-426,502.20

Finding the Fourth Proportional to 651,034.20, 975,968.10 and 426,502.20

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Solution

The fourth proportional to 651,034.20, 975,968.10 and 426,502.20 is: 639,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,034.20 : 975,968.10 = 426,502.20 : x
  2. Step 2: Convert to fraction form
    651,034.20/975,968.10 = 426,502.20/x
  3. Step 3: Cross multiply
    651,034.20x = 975,968.10 × 426,502.20
  4. Step 4: Simplify right side
    651,034.20x = 416,252,541,779.82
  5. Step 5: Solve for x
    x = 416,252,541,779.82/651,034.20
  6. Step 6: Final answer
    x = 639,371.24

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Half scale
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Double scale
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Similar ratio
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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.