Home / 840,632.80-1,160,072.88-538,826.56

Finding the Fourth Proportional to 840,632.80, 1,160,072.88 and 538,826.56

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Solution

The fourth proportional to 840,632.80, 1,160,072.88 and 538,826.56 is: 743,580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,632.80 : 1,160,072.88 = 538,826.56 : x
  2. Step 2: Convert to fraction form
    840,632.80/1,160,072.88 = 538,826.56/x
  3. Step 3: Cross multiply
    840,632.80x = 1,160,072.88 × 538,826.56
  4. Step 4: Simplify right side
    840,632.80x = 625,078,079,279.69
  5. Step 5: Solve for x
    x = 625,078,079,279.69/840,632.80
  6. Step 6: Final answer
    x = 743,580.41

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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.