Home / 485,769.28-670,294.56-270,884.16

Finding the Fourth Proportional to 485,769.28, 670,294.56 and 270,884.16

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Solution

The fourth proportional to 485,769.28, 670,294.56 and 270,884.16 is: 373,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,769.28 : 670,294.56 = 270,884.16 : x
  2. Step 2: Convert to fraction form
    485,769.28/670,294.56 = 270,884.16/x
  3. Step 3: Cross multiply
    485,769.28x = 670,294.56 × 270,884.16
  4. Step 4: Simplify right side
    485,769.28x = 181,572,178,838.17
  5. Step 5: Solve for x
    x = 181,572,178,838.17/485,769.28
  6. Step 6: Final answer
    x = 373,782.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.