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Finding the Fourth Proportional to 480,707.70, 720,842.85 and 256,010.46

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Solution

The fourth proportional to 480,707.70, 720,842.85 and 256,010.46 is: 383,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,707.70 : 720,842.85 = 256,010.46 : x
  2. Step 2: Convert to fraction form
    480,707.70/720,842.85 = 256,010.46/x
  3. Step 3: Cross multiply
    480,707.70x = 720,842.85 × 256,010.46
  4. Step 4: Simplify right side
    480,707.70x = 184,543,309,616.21
  5. Step 5: Solve for x
    x = 184,543,309,616.21/480,707.70
  6. Step 6: Final answer
    x = 383,899.22

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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.