Home / 739,221.90-1,108,869.30-384,927.90

Finding the Fourth Proportional to 739,221.90, 1,108,869.30 and 384,927.90

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Solution

The fourth proportional to 739,221.90, 1,108,869.30 and 384,927.90 is: 577,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,221.90 : 1,108,869.30 = 384,927.90 : x
  2. Step 2: Convert to fraction form
    739,221.90/1,108,869.30 = 384,927.90/x
  3. Step 3: Cross multiply
    739,221.90x = 1,108,869.30 × 384,927.90
  4. Step 4: Simplify right side
    739,221.90x = 426,834,731,023.47
  5. Step 5: Solve for x
    x = 426,834,731,023.47/739,221.90
  6. Step 6: Final answer
    x = 577,410.83

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1.5x scale

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.