Home / 1,187,139.54-1,780,696.17-288,582.14

Finding the Fourth Proportional to 1,187,139.54, 1,780,696.17 and 288,582.14

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Solution

The fourth proportional to 1,187,139.54, 1,780,696.17 and 288,582.14 is: 432,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,139.54 : 1,780,696.17 = 288,582.14 : x
  2. Step 2: Convert to fraction form
    1,187,139.54/1,780,696.17 = 288,582.14/x
  3. Step 3: Cross multiply
    1,187,139.54x = 1,780,696.17 × 288,582.14
  4. Step 4: Simplify right side
    1,187,139.54x = 513,877,103,394.20
  5. Step 5: Solve for x
    x = 513,877,103,394.20/1,187,139.54
  6. Step 6: Final answer
    x = 432,870.01

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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.