Home / 1,225,510.95-1,690,789.88-876,356.40

Finding the Fourth Proportional to 1,225,510.95, 1,690,789.88 and 876,356.40

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Solution

The fourth proportional to 1,225,510.95, 1,690,789.88 and 876,356.40 is: 1,209,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,510.95 : 1,690,789.88 = 876,356.40 : x
  2. Step 2: Convert to fraction form
    1,225,510.95/1,690,789.88 = 876,356.40/x
  3. Step 3: Cross multiply
    1,225,510.95x = 1,690,789.88 × 876,356.40
  4. Step 4: Simplify right side
    1,225,510.95x = 1,481,734,532,393.23
  5. Step 5: Solve for x
    x = 1,481,734,532,393.23/1,225,510.95
  6. Step 6: Final answer
    x = 1,209,074.90

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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.