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Finding the Fourth Proportional to 500,001.78, 750,003.06 and 126,024.78

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Solution

The fourth proportional to 500,001.78, 750,003.06 and 126,024.78 is: 189,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,001.78 : 750,003.06 = 126,024.78 : x
  2. Step 2: Convert to fraction form
    500,001.78/750,003.06 = 126,024.78/x
  3. Step 3: Cross multiply
    500,001.78x = 750,003.06 × 126,024.78
  4. Step 4: Simplify right side
    500,001.78x = 94,518,970,635.83
  5. Step 5: Solve for x
    x = 94,518,970,635.83/500,001.78
  6. Step 6: Final answer
    x = 189,037.27

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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.