Home / 643,041.55-963,868.28-282,891.86

Finding the Fourth Proportional to 643,041.55, 963,868.28 and 282,891.86

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Solution

The fourth proportional to 643,041.55, 963,868.28 and 282,891.86 is: 424,032.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,041.55 : 963,868.28 = 282,891.86 : x
  2. Step 2: Convert to fraction form
    643,041.55/963,868.28 = 282,891.86/x
  3. Step 3: Cross multiply
    643,041.55x = 963,868.28 × 282,891.86
  4. Step 4: Simplify right side
    643,041.55x = 272,670,487,904.91
  5. Step 5: Solve for x
    x = 272,670,487,904.91/643,041.55
  6. Step 6: Final answer
    x = 424,032.46

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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.