Home / 1,186,366.88-1,779,826.80-387,685.28

Finding the Fourth Proportional to 1,186,366.88, 1,779,826.80 and 387,685.28

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Solution

The fourth proportional to 1,186,366.88, 1,779,826.80 and 387,685.28 is: 581,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,366.88 : 1,779,826.80 = 387,685.28 : x
  2. Step 2: Convert to fraction form
    1,186,366.88/1,779,826.80 = 387,685.28/x
  3. Step 3: Cross multiply
    1,186,366.88x = 1,779,826.80 × 387,685.28
  4. Step 4: Simplify right side
    1,186,366.88x = 690,012,651,309.50
  5. Step 5: Solve for x
    x = 690,012,651,309.50/1,186,366.88
  6. Step 6: Final answer
    x = 581,618.27

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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.