Home / 421,079.60-581,122.96-239,799.18

Finding the Fourth Proportional to 421,079.60, 581,122.96 and 239,799.18

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Solution

The fourth proportional to 421,079.60, 581,122.96 and 239,799.18 is: 330,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,079.60 : 581,122.96 = 239,799.18 : x
  2. Step 2: Convert to fraction form
    421,079.60/581,122.96 = 239,799.18/x
  3. Step 3: Cross multiply
    421,079.60x = 581,122.96 × 239,799.18
  4. Step 4: Simplify right side
    421,079.60x = 139,352,809,287.17
  5. Step 5: Solve for x
    x = 139,352,809,287.17/421,079.60
  6. Step 6: Final answer
    x = 330,941.73

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1.5x scale

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.