Home / 828,358.60-1,240,914.05-429,261.17

Finding the Fourth Proportional to 828,358.60, 1,240,914.05 and 429,261.17

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Solution

The fourth proportional to 828,358.60, 1,240,914.05 and 429,261.17 is: 643,050.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,358.60 : 1,240,914.05 = 429,261.17 : x
  2. Step 2: Convert to fraction form
    828,358.60/1,240,914.05 = 429,261.17/x
  3. Step 3: Cross multiply
    828,358.60x = 1,240,914.05 × 429,261.17
  4. Step 4: Simplify right side
    828,358.60x = 532,676,216,972.44
  5. Step 5: Solve for x
    x = 532,676,216,972.44/828,358.60
  6. Step 6: Final answer
    x = 643,050.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.