Home / 820,291.80-1,230,437.70-741,559.80

Finding the Fourth Proportional to 820,291.80, 1,230,437.70 and 741,559.80

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Solution

The fourth proportional to 820,291.80, 1,230,437.70 and 741,559.80 is: 1,112,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,291.80 : 1,230,437.70 = 741,559.80 : x
  2. Step 2: Convert to fraction form
    820,291.80/1,230,437.70 = 741,559.80/x
  3. Step 3: Cross multiply
    820,291.80x = 1,230,437.70 × 741,559.80
  4. Step 4: Simplify right side
    820,291.80x = 912,443,134,724.46
  5. Step 5: Solve for x
    x = 912,443,134,724.46/820,291.80
  6. Step 6: Final answer
    x = 1,112,339.70

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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.