Home / 459,116.80-688,675.20-409,253.20

Finding the Fourth Proportional to 459,116.80, 688,675.20 and 409,253.20

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Solution

The fourth proportional to 459,116.80, 688,675.20 and 409,253.20 is: 613,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,116.80 : 688,675.20 = 409,253.20 : x
  2. Step 2: Convert to fraction form
    459,116.80/688,675.20 = 409,253.20/x
  3. Step 3: Cross multiply
    459,116.80x = 688,675.20 × 409,253.20
  4. Step 4: Simplify right side
    459,116.80x = 281,842,529,360.64
  5. Step 5: Solve for x
    x = 281,842,529,360.64/459,116.80
  6. Step 6: Final answer
    x = 613,879.80

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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.