Home / 742,108.52-1,024,109.98-419,811.80

Finding the Fourth Proportional to 742,108.52, 1,024,109.98 and 419,811.80

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Solution

The fourth proportional to 742,108.52, 1,024,109.98 and 419,811.80 is: 579,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,108.52 : 1,024,109.98 = 419,811.80 : x
  2. Step 2: Convert to fraction form
    742,108.52/1,024,109.98 = 419,811.80/x
  3. Step 3: Cross multiply
    742,108.52x = 1,024,109.98 × 419,811.80
  4. Step 4: Simplify right side
    742,108.52x = 429,933,454,101.76
  5. Step 5: Solve for x
    x = 429,933,454,101.76/742,108.52
  6. Step 6: Final answer
    x = 579,340.41

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1.5x scale

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.