Home / 987,231.10-1,479,727.17-453,649.57

Finding the Fourth Proportional to 987,231.10, 1,479,727.17 and 453,649.57

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Solution

The fourth proportional to 987,231.10, 1,479,727.17 and 453,649.57 is: 679,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,231.10 : 1,479,727.17 = 453,649.57 : x
  2. Step 2: Convert to fraction form
    987,231.10/1,479,727.17 = 453,649.57/x
  3. Step 3: Cross multiply
    987,231.10x = 1,479,727.17 × 453,649.57
  4. Step 4: Simplify right side
    987,231.10x = 671,277,590,688.50
  5. Step 5: Solve for x
    x = 671,277,590,688.50/987,231.10
  6. Step 6: Final answer
    x = 679,959.93

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1.5x scale

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.