Home / 828,285.60-1,242,428.40-746,929.20

Finding the Fourth Proportional to 828,285.60, 1,242,428.40 and 746,929.20

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Solution

The fourth proportional to 828,285.60, 1,242,428.40 and 746,929.20 is: 1,120,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,285.60 : 1,242,428.40 = 746,929.20 : x
  2. Step 2: Convert to fraction form
    828,285.60/1,242,428.40 = 746,929.20/x
  3. Step 3: Cross multiply
    828,285.60x = 1,242,428.40 × 746,929.20
  4. Step 4: Simplify right side
    828,285.60x = 928,006,050,869.28
  5. Step 5: Solve for x
    x = 928,006,050,869.28/828,285.60
  6. Step 6: Final answer
    x = 1,120,393.80

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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.