Home / 723,328.20-1,085,165.10-349,043.40

Finding the Fourth Proportional to 723,328.20, 1,085,165.10 and 349,043.40

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Solution

The fourth proportional to 723,328.20, 1,085,165.10 and 349,043.40 is: 523,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,328.20 : 1,085,165.10 = 349,043.40 : x
  2. Step 2: Convert to fraction form
    723,328.20/1,085,165.10 = 349,043.40/x
  3. Step 3: Cross multiply
    723,328.20x = 1,085,165.10 × 349,043.40
  4. Step 4: Simplify right side
    723,328.20x = 378,769,716,065.34
  5. Step 5: Solve for x
    x = 378,769,716,065.34/723,328.20
  6. Step 6: Final answer
    x = 523,648.48

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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.