Home / 772,182.72-1,158,274.08-211,222.08

Finding the Fourth Proportional to 772,182.72, 1,158,274.08 and 211,222.08

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Solution

The fourth proportional to 772,182.72, 1,158,274.08 and 211,222.08 is: 316,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,182.72 : 1,158,274.08 = 211,222.08 : x
  2. Step 2: Convert to fraction form
    772,182.72/1,158,274.08 = 211,222.08/x
  3. Step 3: Cross multiply
    772,182.72x = 1,158,274.08 × 211,222.08
  4. Step 4: Simplify right side
    772,182.72x = 244,653,060,387.69
  5. Step 5: Solve for x
    x = 244,653,060,387.69/772,182.72
  6. Step 6: Final answer
    x = 316,833.12

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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.