Home / 915,744.80-1,373,610.72-284,657.60

Finding the Fourth Proportional to 915,744.80, 1,373,610.72 and 284,657.60

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Solution

The fourth proportional to 915,744.80, 1,373,610.72 and 284,657.60 is: 426,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,744.80 : 1,373,610.72 = 284,657.60 : x
  2. Step 2: Convert to fraction form
    915,744.80/1,373,610.72 = 284,657.60/x
  3. Step 3: Cross multiply
    915,744.80x = 1,373,610.72 × 284,657.60
  4. Step 4: Simplify right side
    915,744.80x = 391,008,730,889.47
  5. Step 5: Solve for x
    x = 391,008,730,889.47/915,744.80
  6. Step 6: Final answer
    x = 426,984.39

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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.