Home / 487,488.08-672,705.48-269,683.92

Finding the Fourth Proportional to 487,488.08, 672,705.48 and 269,683.92

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Solution

The fourth proportional to 487,488.08, 672,705.48 and 269,683.92 is: 372,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,488.08 : 672,705.48 = 269,683.92 : x
  2. Step 2: Convert to fraction form
    487,488.08/672,705.48 = 269,683.92/x
  3. Step 3: Cross multiply
    487,488.08x = 672,705.48 × 269,683.92
  4. Step 4: Simplify right side
    487,488.08x = 181,417,850,851.88
  5. Step 5: Solve for x
    x = 181,417,850,851.88/487,488.08
  6. Step 6: Final answer
    x = 372,148.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.