Home / 745,334.60-1,117,979.12-212,856.60

Finding the Fourth Proportional to 745,334.60, 1,117,979.12 and 212,856.60

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Solution

The fourth proportional to 745,334.60, 1,117,979.12 and 212,856.60 is: 319,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,334.60 : 1,117,979.12 = 212,856.60 : x
  2. Step 2: Convert to fraction form
    745,334.60/1,117,979.12 = 212,856.60/x
  3. Step 3: Cross multiply
    745,334.60x = 1,117,979.12 × 212,856.60
  4. Step 4: Simplify right side
    745,334.60x = 237,969,234,886.33
  5. Step 5: Solve for x
    x = 237,969,234,886.33/745,334.60
  6. Step 6: Final answer
    x = 319,278.39

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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.