Home / 747,978.48-1,121,967.70-187,012.98

Finding the Fourth Proportional to 747,978.48, 1,121,967.70 and 187,012.98

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Solution

The fourth proportional to 747,978.48, 1,121,967.70 and 187,012.98 is: 280,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,978.48 : 1,121,967.70 = 187,012.98 : x
  2. Step 2: Convert to fraction form
    747,978.48/1,121,967.70 = 187,012.98/x
  3. Step 3: Cross multiply
    747,978.48x = 1,121,967.70 × 187,012.98
  4. Step 4: Simplify right side
    747,978.48x = 209,822,523,040.75
  5. Step 5: Solve for x
    x = 209,822,523,040.75/747,978.48
  6. Step 6: Final answer
    x = 280,519.46

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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.