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Finding the Fourth Proportional to 389,600.90, 584,401.35 and 384,352.10

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Solution

The fourth proportional to 389,600.90, 584,401.35 and 384,352.10 is: 576,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,600.90 : 584,401.35 = 384,352.10 : x
  2. Step 2: Convert to fraction form
    389,600.90/584,401.35 = 384,352.10/x
  3. Step 3: Cross multiply
    389,600.90x = 584,401.35 × 384,352.10
  4. Step 4: Simplify right side
    389,600.90x = 224,615,886,115.34
  5. Step 5: Solve for x
    x = 224,615,886,115.34/389,600.90
  6. Step 6: Final answer
    x = 576,528.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.