Home / 772,561.80-1,158,842.70-323,133.30

Finding the Fourth Proportional to 772,561.80, 1,158,842.70 and 323,133.30

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Solution

The fourth proportional to 772,561.80, 1,158,842.70 and 323,133.30 is: 484,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,561.80 : 1,158,842.70 = 323,133.30 : x
  2. Step 2: Convert to fraction form
    772,561.80/1,158,842.70 = 323,133.30/x
  3. Step 3: Cross multiply
    772,561.80x = 1,158,842.70 × 323,133.30
  4. Step 4: Simplify right side
    772,561.80x = 374,460,665,831.91
  5. Step 5: Solve for x
    x = 374,460,665,831.91/772,561.80
  6. Step 6: Final answer
    x = 484,699.95

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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.