Home / 828,990.80-1,243,486.20-577,048.40

Finding the Fourth Proportional to 828,990.80, 1,243,486.20 and 577,048.40

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Solution

The fourth proportional to 828,990.80, 1,243,486.20 and 577,048.40 is: 865,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,990.80 : 1,243,486.20 = 577,048.40 : x
  2. Step 2: Convert to fraction form
    828,990.80/1,243,486.20 = 577,048.40/x
  3. Step 3: Cross multiply
    828,990.80x = 1,243,486.20 × 577,048.40
  4. Step 4: Simplify right side
    828,990.80x = 717,551,722,132.08
  5. Step 5: Solve for x
    x = 717,551,722,132.08/828,990.80
  6. Step 6: Final answer
    x = 865,572.60

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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.