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Finding the Fourth Proportional to 566,281.56, 781,468.66 and 311,632.75

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Solution

The fourth proportional to 566,281.56, 781,468.66 and 311,632.75 is: 430,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,281.56 : 781,468.66 = 311,632.75 : x
  2. Step 2: Convert to fraction form
    566,281.56/781,468.66 = 311,632.75/x
  3. Step 3: Cross multiply
    566,281.56x = 781,468.66 × 311,632.75
  4. Step 4: Simplify right side
    566,281.56x = 243,531,227,554.62
  5. Step 5: Solve for x
    x = 243,531,227,554.62/566,281.56
  6. Step 6: Final answer
    x = 430,053.25

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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.