Home / 620,749.10-930,904.95-221,402.90

Finding the Fourth Proportional to 620,749.10, 930,904.95 and 221,402.90

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Solution

The fourth proportional to 620,749.10, 930,904.95 and 221,402.90 is: 332,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,749.10 : 930,904.95 = 221,402.90 : x
  2. Step 2: Convert to fraction form
    620,749.10/930,904.95 = 221,402.90/x
  3. Step 3: Cross multiply
    620,749.10x = 930,904.95 × 221,402.90
  4. Step 4: Simplify right side
    620,749.10x = 206,105,055,554.36
  5. Step 5: Solve for x
    x = 206,105,055,554.36/620,749.10
  6. Step 6: Final answer
    x = 332,026.35

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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.