Home / 1,386,359.03-1,912,986.15-774,436.13

Finding the Fourth Proportional to 1,386,359.03, 1,912,986.15 and 774,436.13

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Solution

The fourth proportional to 1,386,359.03, 1,912,986.15 and 774,436.13 is: 1,068,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,359.03 : 1,912,986.15 = 774,436.13 : x
  2. Step 2: Convert to fraction form
    1,386,359.03/1,912,986.15 = 774,436.13/x
  3. Step 3: Cross multiply
    1,386,359.03x = 1,912,986.15 × 774,436.13
  4. Step 4: Simplify right side
    1,386,359.03x = 1,481,485,581,184.67
  5. Step 5: Solve for x
    x = 1,481,485,581,184.67/1,386,359.03
  6. Step 6: Final answer
    x = 1,068,616.10

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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.