Home / 432,250.02-648,317.60-128,638.73

Finding the Fourth Proportional to 432,250.02, 648,317.60 and 128,638.73

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Solution

The fourth proportional to 432,250.02, 648,317.60 and 128,638.73 is: 192,940.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,250.02 : 648,317.60 = 128,638.73 : x
  2. Step 2: Convert to fraction form
    432,250.02/648,317.60 = 128,638.73/x
  3. Step 3: Cross multiply
    432,250.02x = 648,317.60 × 128,638.73
  4. Step 4: Simplify right side
    432,250.02x = 83,398,748,815.87
  5. Step 5: Solve for x
    x = 83,398,748,815.87/432,250.02
  6. Step 6: Final answer
    x = 192,940.99

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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.