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Finding the Fourth Proportional to 577,078.80, 865,618.20 and 549,522.60

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Solution

The fourth proportional to 577,078.80, 865,618.20 and 549,522.60 is: 824,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,078.80 : 865,618.20 = 549,522.60 : x
  2. Step 2: Convert to fraction form
    577,078.80/865,618.20 = 549,522.60/x
  3. Step 3: Cross multiply
    577,078.80x = 865,618.20 × 549,522.60
  4. Step 4: Simplify right side
    577,078.80x = 475,676,763,871.32
  5. Step 5: Solve for x
    x = 475,676,763,871.32/577,078.80
  6. Step 6: Final answer
    x = 824,283.90

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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.