Home / 687,462.69-1,031,254.03-282,679.54

Finding the Fourth Proportional to 687,462.69, 1,031,254.03 and 282,679.54

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Solution

The fourth proportional to 687,462.69, 1,031,254.03 and 282,679.54 is: 424,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,462.69 : 1,031,254.03 = 282,679.54 : x
  2. Step 2: Convert to fraction form
    687,462.69/1,031,254.03 = 282,679.54/x
  3. Step 3: Cross multiply
    687,462.69x = 1,031,254.03 × 282,679.54
  4. Step 4: Simplify right side
    687,462.69x = 291,514,412,598.76
  5. Step 5: Solve for x
    x = 291,514,412,598.76/687,462.69
  6. Step 6: Final answer
    x = 424,043.97

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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.