Home / 687,575.08-1,031,339.93-282,753.28

Finding the Fourth Proportional to 687,575.08, 1,031,339.93 and 282,753.28

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Solution

The fourth proportional to 687,575.08, 1,031,339.93 and 282,753.28 is: 424,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,575.08 : 1,031,339.93 = 282,753.28 : x
  2. Step 2: Convert to fraction form
    687,575.08/1,031,339.93 = 282,753.28/x
  3. Step 3: Cross multiply
    687,575.08x = 1,031,339.93 × 282,753.28
  4. Step 4: Simplify right side
    687,575.08x = 291,614,742,845.77
  5. Step 5: Solve for x
    x = 291,614,742,845.77/687,575.08
  6. Step 6: Final answer
    x = 424,120.58

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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.