Home / 739,964.55-1,021,151.04-400,432.80

Finding the Fourth Proportional to 739,964.55, 1,021,151.04 and 400,432.80

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Solution

The fourth proportional to 739,964.55, 1,021,151.04 and 400,432.80 is: 552,597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,964.55 : 1,021,151.04 = 400,432.80 : x
  2. Step 2: Convert to fraction form
    739,964.55/1,021,151.04 = 400,432.80/x
  3. Step 3: Cross multiply
    739,964.55x = 1,021,151.04 × 400,432.80
  4. Step 4: Simplify right side
    739,964.55x = 408,902,370,170.11
  5. Step 5: Solve for x
    x = 408,902,370,170.11/739,964.55
  6. Step 6: Final answer
    x = 552,597.24

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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.