Home / 927,712.80-1,391,423.40-328,588.20

Finding the Fourth Proportional to 927,712.80, 1,391,423.40 and 328,588.20

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Solution

The fourth proportional to 927,712.80, 1,391,423.40 and 328,588.20 is: 492,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,712.80 : 1,391,423.40 = 328,588.20 : x
  2. Step 2: Convert to fraction form
    927,712.80/1,391,423.40 = 328,588.20/x
  3. Step 3: Cross multiply
    927,712.80x = 1,391,423.40 × 328,588.20
  4. Step 4: Simplify right side
    927,712.80x = 457,205,310,443.88
  5. Step 5: Solve for x
    x = 457,205,310,443.88/927,712.80
  6. Step 6: Final answer
    x = 492,830.66

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1.5x scale

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.