Home / 390,449.60-585,005.18-262,125.53

Finding the Fourth Proportional to 390,449.60, 585,005.18 and 262,125.53

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Solution

The fourth proportional to 390,449.60, 585,005.18 and 262,125.53 is: 392,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,449.60 : 585,005.18 = 262,125.53 : x
  2. Step 2: Convert to fraction form
    390,449.60/585,005.18 = 262,125.53/x
  3. Step 3: Cross multiply
    390,449.60x = 585,005.18 × 262,125.53
  4. Step 4: Simplify right side
    390,449.60x = 153,344,788,624.59
  5. Step 5: Solve for x
    x = 153,344,788,624.59/390,449.60
  6. Step 6: Final answer
    x = 392,739.01

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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.