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Finding the Fourth Proportional to 566,597.27, 781,902.81 and 311,948.45

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Solution

The fourth proportional to 566,597.27, 781,902.81 and 311,948.45 is: 430,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,597.27 : 781,902.81 = 311,948.45 : x
  2. Step 2: Convert to fraction form
    566,597.27/781,902.81 = 311,948.45/x
  3. Step 3: Cross multiply
    566,597.27x = 781,902.81 × 311,948.45
  4. Step 4: Simplify right side
    566,597.27x = 243,913,365,720.63
  5. Step 5: Solve for x
    x = 243,913,365,720.63/566,597.27
  6. Step 6: Final answer
    x = 430,488.07

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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.