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Finding the Fourth Proportional to 566,466.01, 781,789.78 and 318,148.81

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Solution

The fourth proportional to 566,466.01, 781,789.78 and 318,148.81 is: 439,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,466.01 : 781,789.78 = 318,148.81 : x
  2. Step 2: Convert to fraction form
    566,466.01/781,789.78 = 318,148.81/x
  3. Step 3: Cross multiply
    566,466.01x = 781,789.78 × 318,148.81
  4. Step 4: Simplify right side
    566,466.01x = 248,725,489,228.35
  5. Step 5: Solve for x
    x = 248,725,489,228.35/566,466.01
  6. Step 6: Final answer
    x = 439,082.81

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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.