Home / 891,820.80-1,335,657.60-609,811.20

Finding the Fourth Proportional to 891,820.80, 1,335,657.60 and 609,811.20

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Solution

The fourth proportional to 891,820.80, 1,335,657.60 and 609,811.20 is: 913,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,820.80 : 1,335,657.60 = 609,811.20 : x
  2. Step 2: Convert to fraction form
    891,820.80/1,335,657.60 = 609,811.20/x
  3. Step 3: Cross multiply
    891,820.80x = 1,335,657.60 × 609,811.20
  4. Step 4: Simplify right side
    891,820.80x = 814,498,963,845.12
  5. Step 5: Solve for x
    x = 814,498,963,845.12/891,820.80
  6. Step 6: Final answer
    x = 913,298.91

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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.