Home / 459,154.57-687,586.40-290,165.08

Finding the Fourth Proportional to 459,154.57, 687,586.40 and 290,165.08

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Solution

The fourth proportional to 459,154.57, 687,586.40 and 290,165.08 is: 434,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,154.57 : 687,586.40 = 290,165.08 : x
  2. Step 2: Convert to fraction form
    459,154.57/687,586.40 = 290,165.08/x
  3. Step 3: Cross multiply
    459,154.57x = 687,586.40 × 290,165.08
  4. Step 4: Simplify right side
    459,154.57x = 199,513,560,050.39
  5. Step 5: Solve for x
    x = 199,513,560,050.39/459,154.57
  6. Step 6: Final answer
    x = 434,523.74

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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.