Home / 725,143.02-1,087,602.21-370,419.18

Finding the Fourth Proportional to 725,143.02, 1,087,602.21 and 370,419.18

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Solution

The fourth proportional to 725,143.02, 1,087,602.21 and 370,419.18 is: 555,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,143.02 : 1,087,602.21 = 370,419.18 : x
  2. Step 2: Convert to fraction form
    725,143.02/1,087,602.21 = 370,419.18/x
  3. Step 3: Cross multiply
    725,143.02x = 1,087,602.21 × 370,419.18
  4. Step 4: Simplify right side
    725,143.02x = 402,868,718,794.39
  5. Step 5: Solve for x
    x = 402,868,718,794.39/725,143.02
  6. Step 6: Final answer
    x = 555,571.39

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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.