Home / 687,488.48-1,031,216.88-404,971.24

Finding the Fourth Proportional to 687,488.48, 1,031,216.88 and 404,971.24

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Solution

The fourth proportional to 687,488.48, 1,031,216.88 and 404,971.24 is: 607,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,488.48 : 1,031,216.88 = 404,971.24 : x
  2. Step 2: Convert to fraction form
    687,488.48/1,031,216.88 = 404,971.24/x
  3. Step 3: Cross multiply
    687,488.48x = 1,031,216.88 × 404,971.24
  4. Step 4: Simplify right side
    687,488.48x = 417,613,173,446.45
  5. Step 5: Solve for x
    x = 417,613,173,446.45/687,488.48
  6. Step 6: Final answer
    x = 607,447.52

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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.