Home / 747,478.90-1,121,178.10-368,021.31

Finding the Fourth Proportional to 747,478.90, 1,121,178.10 and 368,021.31

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Solution

The fourth proportional to 747,478.90, 1,121,178.10 and 368,021.31 is: 552,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,478.90 : 1,121,178.10 = 368,021.31 : x
  2. Step 2: Convert to fraction form
    747,478.90/1,121,178.10 = 368,021.31/x
  3. Step 3: Cross multiply
    747,478.90x = 1,121,178.10 × 368,021.31
  4. Step 4: Simplify right side
    747,478.90x = 412,617,433,105.31
  5. Step 5: Solve for x
    x = 412,617,433,105.31/747,478.90
  6. Step 6: Final answer
    x = 552,012.15

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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.