Home / 739,964.36-1,021,150.80-400,432.61

Finding the Fourth Proportional to 739,964.36, 1,021,150.80 and 400,432.61

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Solution

The fourth proportional to 739,964.36, 1,021,150.80 and 400,432.61 is: 552,596.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,964.36 : 1,021,150.80 = 400,432.61 : x
  2. Step 2: Convert to fraction form
    739,964.36/1,021,150.80 = 400,432.61/x
  3. Step 3: Cross multiply
    739,964.36x = 1,021,150.80 × 400,432.61
  4. Step 4: Simplify right side
    739,964.36x = 408,902,074,941.83
  5. Step 5: Solve for x
    x = 408,902,074,941.83/739,964.36
  6. Step 6: Final answer
    x = 552,596.99

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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.