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Finding the Fourth Proportional to 432,289.80, 648,045.90 and 282,601.80

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Solution

The fourth proportional to 432,289.80, 648,045.90 and 282,601.80 is: 423,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,289.80 : 648,045.90 = 282,601.80 : x
  2. Step 2: Convert to fraction form
    432,289.80/648,045.90 = 282,601.80/x
  3. Step 3: Cross multiply
    432,289.80x = 648,045.90 × 282,601.80
  4. Step 4: Simplify right side
    432,289.80x = 183,138,937,822.62
  5. Step 5: Solve for x
    x = 183,138,937,822.62/432,289.80
  6. Step 6: Final answer
    x = 423,648.53

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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.