Home / 840,165.40-1,259,869.02-240,990.58

Finding the Fourth Proportional to 840,165.40, 1,259,869.02 and 240,990.58

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Solution

The fourth proportional to 840,165.40, 1,259,869.02 and 240,990.58 is: 361,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,165.40 : 1,259,869.02 = 240,990.58 : x
  2. Step 2: Convert to fraction form
    840,165.40/1,259,869.02 = 240,990.58/x
  3. Step 3: Cross multiply
    840,165.40x = 1,259,869.02 × 240,990.58
  4. Step 4: Simplify right side
    840,165.40x = 303,616,565,853.83
  5. Step 5: Solve for x
    x = 303,616,565,853.83/840,165.40
  6. Step 6: Final answer
    x = 361,377.14

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1.5x scale

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.