Home / 987,180.65-1,479,684.18-645,483.17

Finding the Fourth Proportional to 987,180.65, 1,479,684.18 and 645,483.17

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Solution

The fourth proportional to 987,180.65, 1,479,684.18 and 645,483.17 is: 967,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,180.65 : 1,479,684.18 = 645,483.17 : x
  2. Step 2: Convert to fraction form
    987,180.65/1,479,684.18 = 645,483.17/x
  3. Step 3: Cross multiply
    987,180.65x = 1,479,684.18 × 645,483.17
  4. Step 4: Simplify right side
    987,180.65x = 955,111,227,455.54
  5. Step 5: Solve for x
    x = 955,111,227,455.54/987,180.65
  6. Step 6: Final answer
    x = 967,514.13

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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.