Home / 687,514.70-1,031,272.05-477,562.70

Finding the Fourth Proportional to 687,514.70, 1,031,272.05 and 477,562.70

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Solution

The fourth proportional to 687,514.70, 1,031,272.05 and 477,562.70 is: 716,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,514.70 : 1,031,272.05 = 477,562.70 : x
  2. Step 2: Convert to fraction form
    687,514.70/1,031,272.05 = 477,562.70/x
  3. Step 3: Cross multiply
    687,514.70x = 1,031,272.05 × 477,562.70
  4. Step 4: Simplify right side
    687,514.70x = 492,497,064,632.54
  5. Step 5: Solve for x
    x = 492,497,064,632.54/687,514.70
  6. Step 6: Final answer
    x = 716,344.05

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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.