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Finding the Fourth Proportional to 665,901.88, 918,948.16 and 364,095.88

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Solution

The fourth proportional to 665,901.88, 918,948.16 and 364,095.88 is: 502,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,901.88 : 918,948.16 = 364,095.88 : x
  2. Step 2: Convert to fraction form
    665,901.88/918,948.16 = 364,095.88/x
  3. Step 3: Cross multiply
    665,901.88x = 918,948.16 × 364,095.88
  4. Step 4: Simplify right side
    665,901.88x = 334,585,238,989.58
  5. Step 5: Solve for x
    x = 334,585,238,989.58/665,901.88
  6. Step 6: Final answer
    x = 502,454.26

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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.