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Finding the Fourth Proportional to 671,646.45, 927,487.83 and 426,710.35

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Solution

The fourth proportional to 671,646.45, 927,487.83 and 426,710.35 is: 589,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,646.45 : 927,487.83 = 426,710.35 : x
  2. Step 2: Convert to fraction form
    671,646.45/927,487.83 = 426,710.35/x
  3. Step 3: Cross multiply
    671,646.45x = 927,487.83 × 426,710.35
  4. Step 4: Simplify right side
    671,646.45x = 395,768,656,560.04
  5. Step 5: Solve for x
    x = 395,768,656,560.04/671,646.45
  6. Step 6: Final answer
    x = 589,251.47

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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.