Home / 865,479.87-1,298,259.90-266,467.86

Finding the Fourth Proportional to 865,479.87, 1,298,259.90 and 266,467.86

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Solution

The fourth proportional to 865,479.87, 1,298,259.90 and 266,467.86 is: 399,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,479.87 : 1,298,259.90 = 266,467.86 : x
  2. Step 2: Convert to fraction form
    865,479.87/1,298,259.90 = 266,467.86/x
  3. Step 3: Cross multiply
    865,479.87x = 1,298,259.90 × 266,467.86
  4. Step 4: Simplify right side
    865,479.87x = 345,944,537,276.81
  5. Step 5: Solve for x
    x = 345,944,537,276.81/865,479.87
  6. Step 6: Final answer
    x = 399,714.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.