Home / 739,963.86-1,021,150.10-400,432.11

Finding the Fourth Proportional to 739,963.86, 1,021,150.10 and 400,432.11

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Solution

The fourth proportional to 739,963.86, 1,021,150.10 and 400,432.11 is: 552,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,963.86 : 1,021,150.10 = 400,432.11 : x
  2. Step 2: Convert to fraction form
    739,963.86/1,021,150.10 = 400,432.11/x
  3. Step 3: Cross multiply
    739,963.86x = 1,021,150.10 × 400,432.11
  4. Step 4: Simplify right side
    739,963.86x = 408,901,289,169.71
  5. Step 5: Solve for x
    x = 408,901,289,169.71/739,963.86
  6. Step 6: Final answer
    x = 552,596.30

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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.