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Finding the Fourth Proportional to 668,746.80, 922,870.50 and 382,273.02

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Solution

The fourth proportional to 668,746.80, 922,870.50 and 382,273.02 is: 527,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,746.80 : 922,870.50 = 382,273.02 : x
  2. Step 2: Convert to fraction form
    668,746.80/922,870.50 = 382,273.02/x
  3. Step 3: Cross multiply
    668,746.80x = 922,870.50 × 382,273.02
  4. Step 4: Simplify right side
    668,746.80x = 352,788,493,103.91
  5. Step 5: Solve for x
    x = 352,788,493,103.91/668,746.80
  6. Step 6: Final answer
    x = 527,536.72

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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.