Home / 708,664.53-977,956.17-386,374.55

Finding the Fourth Proportional to 708,664.53, 977,956.17 and 386,374.55

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Solution

The fourth proportional to 708,664.53, 977,956.17 and 386,374.55 is: 533,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,664.53 : 977,956.17 = 386,374.55 : x
  2. Step 2: Convert to fraction form
    708,664.53/977,956.17 = 386,374.55/x
  3. Step 3: Cross multiply
    708,664.53x = 977,956.17 × 386,374.55
  4. Step 4: Simplify right side
    708,664.53x = 377,857,370,213.69
  5. Step 5: Solve for x
    x = 377,857,370,213.69/708,664.53
  6. Step 6: Final answer
    x = 533,196.39

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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.