Home / 615,175.20-921,985.20-548,301.60

Finding the Fourth Proportional to 615,175.20, 921,985.20 and 548,301.60

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Solution

The fourth proportional to 615,175.20, 921,985.20 and 548,301.60 is: 821,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,175.20 : 921,985.20 = 548,301.60 : x
  2. Step 2: Convert to fraction form
    615,175.20/921,985.20 = 548,301.60/x
  3. Step 3: Cross multiply
    615,175.20x = 921,985.20 × 548,301.60
  4. Step 4: Simplify right side
    615,175.20x = 505,525,960,336.32
  5. Step 5: Solve for x
    x = 505,525,960,336.32/615,175.20
  6. Step 6: Final answer
    x = 821,759.33

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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.