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Finding the Fourth Proportional to 485,471.17, 670,237.25 and 431,607.12

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Solution

The fourth proportional to 485,471.17, 670,237.25 and 431,607.12 is: 595,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,471.17 : 670,237.25 = 431,607.12 : x
  2. Step 2: Convert to fraction form
    485,471.17/670,237.25 = 431,607.12/x
  3. Step 3: Cross multiply
    485,471.17x = 670,237.25 × 431,607.12
  4. Step 4: Simplify right side
    485,471.17x = 289,279,168,202.28
  5. Step 5: Solve for x
    x = 289,279,168,202.28/485,471.17
  6. Step 6: Final answer
    x = 595,873.01

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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.