Home / 880,938.80-1,321,408.20-615,218.30

Finding the Fourth Proportional to 880,938.80, 1,321,408.20 and 615,218.30

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Solution

The fourth proportional to 880,938.80, 1,321,408.20 and 615,218.30 is: 922,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,938.80 : 1,321,408.20 = 615,218.30 : x
  2. Step 2: Convert to fraction form
    880,938.80/1,321,408.20 = 615,218.30/x
  3. Step 3: Cross multiply
    880,938.80x = 1,321,408.20 × 615,218.30
  4. Step 4: Simplify right side
    880,938.80x = 812,954,506,410.06
  5. Step 5: Solve for x
    x = 812,954,506,410.06/880,938.80
  6. Step 6: Final answer
    x = 922,827.45

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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.