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Finding the Fourth Proportional to 566,299.36, 781,477.40 and 321,328.72

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Solution

The fourth proportional to 566,299.36, 781,477.40 and 321,328.72 is: 443,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,299.36 : 781,477.40 = 321,328.72 : x
  2. Step 2: Convert to fraction form
    566,299.36/781,477.40 = 321,328.72/x
  3. Step 3: Cross multiply
    566,299.36x = 781,477.40 × 321,328.72
  4. Step 4: Simplify right side
    566,299.36x = 251,111,132,650.93
  5. Step 5: Solve for x
    x = 251,111,132,650.93/566,299.36
  6. Step 6: Final answer
    x = 443,424.72

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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.