Home / 710,738.12-1,065,388.70-306,194.16

Finding the Fourth Proportional to 710,738.12, 1,065,388.70 and 306,194.16

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Solution

The fourth proportional to 710,738.12, 1,065,388.70 and 306,194.16 is: 458,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,738.12 : 1,065,388.70 = 306,194.16 : x
  2. Step 2: Convert to fraction form
    710,738.12/1,065,388.70 = 306,194.16/x
  3. Step 3: Cross multiply
    710,738.12x = 1,065,388.70 × 306,194.16
  4. Step 4: Simplify right side
    710,738.12x = 326,215,798,069.99
  5. Step 5: Solve for x
    x = 326,215,798,069.99/710,738.12
  6. Step 6: Final answer
    x = 458,981.71

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Double scale
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Similar ratio
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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.