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Finding the Fourth Proportional to 440,888.47, 657,672.65 and 426,129.36

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Solution

The fourth proportional to 440,888.47, 657,672.65 and 426,129.36 is: 635,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,888.47 : 657,672.65 = 426,129.36 : x
  2. Step 2: Convert to fraction form
    440,888.47/657,672.65 = 426,129.36/x
  3. Step 3: Cross multiply
    440,888.47x = 657,672.65 × 426,129.36
  4. Step 4: Simplify right side
    440,888.47x = 280,253,622,435.07
  5. Step 5: Solve for x
    x = 280,253,622,435.07/440,888.47
  6. Step 6: Final answer
    x = 635,656.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.