Home / 672,638.79-1,008,954.54-288,331.05

Finding the Fourth Proportional to 672,638.79, 1,008,954.54 and 288,331.05

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Solution

The fourth proportional to 672,638.79, 1,008,954.54 and 288,331.05 is: 432,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,638.79 : 1,008,954.54 = 288,331.05 : x
  2. Step 2: Convert to fraction form
    672,638.79/1,008,954.54 = 288,331.05/x
  3. Step 3: Cross multiply
    672,638.79x = 1,008,954.54 × 288,331.05
  4. Step 4: Simplify right side
    672,638.79x = 290,912,921,920.47
  5. Step 5: Solve for x
    x = 290,912,921,920.47/672,638.79
  6. Step 6: Final answer
    x = 432,495.01

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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.