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Finding the Fourth Proportional to 432,001.60, 647,224.80 and 352,686.40

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Solution

The fourth proportional to 432,001.60, 647,224.80 and 352,686.40 is: 528,394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,001.60 : 647,224.80 = 352,686.40 : x
  2. Step 2: Convert to fraction form
    432,001.60/647,224.80 = 352,686.40/x
  3. Step 3: Cross multiply
    432,001.60x = 647,224.80 × 352,686.40
  4. Step 4: Simplify right side
    432,001.60x = 228,267,384,702.72
  5. Step 5: Solve for x
    x = 228,267,384,702.72/432,001.60
  6. Step 6: Final answer
    x = 528,394.77

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1.5x scale

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.