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Finding the Fourth Proportional to 566,571.68, 781,839.24 and 311,873.12

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Solution

The fourth proportional to 566,571.68, 781,839.24 and 311,873.12 is: 430,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,571.68 : 781,839.24 = 311,873.12 : x
  2. Step 2: Convert to fraction form
    566,571.68/781,839.24 = 311,873.12/x
  3. Step 3: Cross multiply
    566,571.68x = 781,839.24 × 311,873.12
  4. Step 4: Simplify right side
    566,571.68x = 243,834,643,117.23
  5. Step 5: Solve for x
    x = 243,834,643,117.23/566,571.68
  6. Step 6: Final answer
    x = 430,368.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.