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Finding the Fourth Proportional to 665,807.04, 918,876.96 and 364,046.40

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Solution

The fourth proportional to 665,807.04, 918,876.96 and 364,046.40 is: 502,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,807.04 : 918,876.96 = 364,046.40 : x
  2. Step 2: Convert to fraction form
    665,807.04/918,876.96 = 364,046.40/x
  3. Step 3: Cross multiply
    665,807.04x = 918,876.96 × 364,046.40
  4. Step 4: Simplify right side
    665,807.04x = 334,513,849,330.94
  5. Step 5: Solve for x
    x = 334,513,849,330.94/665,807.04
  6. Step 6: Final answer
    x = 502,418.61

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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.