Home / 380,670.02-571,057.45-127,970.12

Finding the Fourth Proportional to 380,670.02, 571,057.45 and 127,970.12

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Solution

The fourth proportional to 380,670.02, 571,057.45 and 127,970.12 is: 191,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,670.02 : 571,057.45 = 127,970.12 : x
  2. Step 2: Convert to fraction form
    380,670.02/571,057.45 = 127,970.12/x
  3. Step 3: Cross multiply
    380,670.02x = 571,057.45 × 127,970.12
  4. Step 4: Simplify right side
    380,670.02x = 73,078,290,403.39
  5. Step 5: Solve for x
    x = 73,078,290,403.39/380,670.02
  6. Step 6: Final answer
    x = 191,972.80

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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.