Home / 725,420.10-1,088,130.15-192,994.95

Finding the Fourth Proportional to 725,420.10, 1,088,130.15 and 192,994.95

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Solution

The fourth proportional to 725,420.10, 1,088,130.15 and 192,994.95 is: 289,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,420.10 : 1,088,130.15 = 192,994.95 : x
  2. Step 2: Convert to fraction form
    725,420.10/1,088,130.15 = 192,994.95/x
  3. Step 3: Cross multiply
    725,420.10x = 1,088,130.15 × 192,994.95
  4. Step 4: Simplify right side
    725,420.10x = 210,003,623,892.74
  5. Step 5: Solve for x
    x = 210,003,623,892.74/725,420.10
  6. Step 6: Final answer
    x = 289,492.43

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Double scale
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Similar ratio
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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.