Home / 723,291.20-1,085,109.60-349,006.40

Finding the Fourth Proportional to 723,291.20, 1,085,109.60 and 349,006.40

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Solution

The fourth proportional to 723,291.20, 1,085,109.60 and 349,006.40 is: 523,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,291.20 : 1,085,109.60 = 349,006.40 : x
  2. Step 2: Convert to fraction form
    723,291.20/1,085,109.60 = 349,006.40/x
  3. Step 3: Cross multiply
    723,291.20x = 1,085,109.60 × 349,006.40
  4. Step 4: Simplify right side
    723,291.20x = 378,710,195,101.44
  5. Step 5: Solve for x
    x = 378,710,195,101.44/723,291.20
  6. Step 6: Final answer
    x = 523,592.98

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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.