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Finding the Fourth Proportional to 566,569.68, 781,836.48 and 311,871.12

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Solution

The fourth proportional to 566,569.68, 781,836.48 and 311,871.12 is: 430,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,569.68 : 781,836.48 = 311,871.12 : x
  2. Step 2: Convert to fraction form
    566,569.68/781,836.48 = 311,871.12/x
  3. Step 3: Cross multiply
    566,569.68x = 781,836.48 × 311,871.12
  4. Step 4: Simplify right side
    566,569.68x = 243,832,218,674.46
  5. Step 5: Solve for x
    x = 243,832,218,674.46/566,569.68
  6. Step 6: Final answer
    x = 430,365.81

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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.