Home / 1,280,663.76-1,921,030.20-334,013.52

Finding the Fourth Proportional to 1,280,663.76, 1,921,030.20 and 334,013.52

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Solution

The fourth proportional to 1,280,663.76, 1,921,030.20 and 334,013.52 is: 501,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,663.76 : 1,921,030.20 = 334,013.52 : x
  2. Step 2: Convert to fraction form
    1,280,663.76/1,921,030.20 = 334,013.52/x
  3. Step 3: Cross multiply
    1,280,663.76x = 1,921,030.20 × 334,013.52
  4. Step 4: Simplify right side
    1,280,663.76x = 641,650,059,128.30
  5. Step 5: Solve for x
    x = 641,650,059,128.30/1,280,663.76
  6. Step 6: Final answer
    x = 501,029.29

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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.