Home / 487,647.75-672,980.03-272,775

Finding the Fourth Proportional to 487,647.75, 672,980.03 and 272,775

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Solution

The fourth proportional to 487,647.75, 672,980.03 and 272,775 is: 376,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,647.75 : 672,980.03 = 272,775 : x
  2. Step 2: Convert to fraction form
    487,647.75/672,980.03 = 272,775/x
  3. Step 3: Cross multiply
    487,647.75x = 672,980.03 × 272,775
  4. Step 4: Simplify right side
    487,647.75x = 183,572,127,683.25
  5. Step 5: Solve for x
    x = 183,572,127,683.25/487,647.75
  6. Step 6: Final answer
    x = 376,444.12

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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.