Home / 1,003,885.79-1,385,378.49-545,000.00

Finding the Fourth Proportional to 1,003,885.79, 1,385,378.49 and 545,000.00

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Solution

The fourth proportional to 1,003,885.79, 1,385,378.49 and 545,000.00 is: 752,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,885.79 : 1,385,378.49 = 545,000.00 : x
  2. Step 2: Convert to fraction form
    1,003,885.79/1,385,378.49 = 545,000.00/x
  3. Step 3: Cross multiply
    1,003,885.79x = 1,385,378.49 × 545,000.00
  4. Step 4: Simplify right side
    1,003,885.79x = 755,031,270,123.11
  5. Step 5: Solve for x
    x = 755,031,270,123.11/1,003,885.79
  6. Step 6: Final answer
    x = 752,108.73

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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.