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Finding the Fourth Proportional to 665,894.92, 918,934.96 and 364,088.92

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Solution

The fourth proportional to 665,894.92, 918,934.96 and 364,088.92 is: 502,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,894.92 : 918,934.96 = 364,088.92 : x
  2. Step 2: Convert to fraction form
    665,894.92/918,934.96 = 364,088.92/x
  3. Step 3: Cross multiply
    665,894.92x = 918,934.96 × 364,088.92
  4. Step 4: Simplify right side
    665,894.92x = 334,574,037,136.64
  5. Step 5: Solve for x
    x = 334,574,037,136.64/665,894.92
  6. Step 6: Final answer
    x = 502,442.69

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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.