Home / 828,165.60-1,242,248.40-728,438.40

Finding the Fourth Proportional to 828,165.60, 1,242,248.40 and 728,438.40

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Solution

The fourth proportional to 828,165.60, 1,242,248.40 and 728,438.40 is: 1,092,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,165.60 : 1,242,248.40 = 728,438.40 : x
  2. Step 2: Convert to fraction form
    828,165.60/1,242,248.40 = 728,438.40/x
  3. Step 3: Cross multiply
    828,165.60x = 1,242,248.40 × 728,438.40
  4. Step 4: Simplify right side
    828,165.60x = 904,901,436,898.56
  5. Step 5: Solve for x
    x = 904,901,436,898.56/828,165.60
  6. Step 6: Final answer
    x = 1,092,657.60

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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.