Home / 674,911.70-1,011,201.15-319,159.70

Finding the Fourth Proportional to 674,911.70, 1,011,201.15 and 319,159.70

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Solution

The fourth proportional to 674,911.70, 1,011,201.15 and 319,159.70 is: 478,187.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,911.70 : 1,011,201.15 = 319,159.70 : x
  2. Step 2: Convert to fraction form
    674,911.70/1,011,201.15 = 319,159.70/x
  3. Step 3: Cross multiply
    674,911.70x = 1,011,201.15 × 319,159.70
  4. Step 4: Simplify right side
    674,911.70x = 322,734,655,673.66
  5. Step 5: Solve for x
    x = 322,734,655,673.66/674,911.70
  6. Step 6: Final answer
    x = 478,187.97

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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.