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Finding the Fourth Proportional to 671,654.48, 927,498.87 and 426,718.35

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Solution

The fourth proportional to 671,654.48, 927,498.87 and 426,718.35 is: 589,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,654.48 : 927,498.87 = 426,718.35 : x
  2. Step 2: Convert to fraction form
    671,654.48/927,498.87 = 426,718.35/x
  3. Step 3: Cross multiply
    671,654.48x = 927,498.87 × 426,718.35
  4. Step 4: Simplify right side
    671,654.48x = 395,780,787,433.26
  5. Step 5: Solve for x
    x = 395,780,787,433.26/671,654.48
  6. Step 6: Final answer
    x = 589,262.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.