Home / 1,212,652.80-1,818,985.20-314,031.52

Finding the Fourth Proportional to 1,212,652.80, 1,818,985.20 and 314,031.52

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Solution

The fourth proportional to 1,212,652.80, 1,818,985.20 and 314,031.52 is: 471,048.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,652.80 : 1,818,985.20 = 314,031.52 : x
  2. Step 2: Convert to fraction form
    1,212,652.80/1,818,985.20 = 314,031.52/x
  3. Step 3: Cross multiply
    1,212,652.80x = 1,818,985.20 × 314,031.52
  4. Step 4: Simplify right side
    1,212,652.80x = 571,218,687,213.50
  5. Step 5: Solve for x
    x = 571,218,687,213.50/1,212,652.80
  6. Step 6: Final answer
    x = 471,048.83

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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.