Home / 831,937.86-1,147,975.50-469,340.55

Finding the Fourth Proportional to 831,937.86, 1,147,975.50 and 469,340.55

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Solution

The fourth proportional to 831,937.86, 1,147,975.50 and 469,340.55 is: 647,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,937.86 : 1,147,975.50 = 469,340.55 : x
  2. Step 2: Convert to fraction form
    831,937.86/1,147,975.50 = 469,340.55/x
  3. Step 3: Cross multiply
    831,937.86x = 1,147,975.50 × 469,340.55
  4. Step 4: Simplify right side
    831,937.86x = 538,791,454,316.55
  5. Step 5: Solve for x
    x = 538,791,454,316.55/831,937.86
  6. Step 6: Final answer
    x = 647,634.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.