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Finding the Fourth Proportional to 708,347.88, 977,491.56 and 386,051.04

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Solution

The fourth proportional to 708,347.88, 977,491.56 and 386,051.04 is: 532,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,347.88 : 977,491.56 = 386,051.04 : x
  2. Step 2: Convert to fraction form
    708,347.88/977,491.56 = 386,051.04/x
  3. Step 3: Cross multiply
    708,347.88x = 977,491.56 × 386,051.04
  4. Step 4: Simplify right side
    708,347.88x = 377,361,633,329.22
  5. Step 5: Solve for x
    x = 377,361,633,329.22/708,347.88
  6. Step 6: Final answer
    x = 532,734.89

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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.