Home / 890,853.60-1,336,280.40-418,461.60

Finding the Fourth Proportional to 890,853.60, 1,336,280.40 and 418,461.60

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Solution

The fourth proportional to 890,853.60, 1,336,280.40 and 418,461.60 is: 627,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,853.60 : 1,336,280.40 = 418,461.60 : x
  2. Step 2: Convert to fraction form
    890,853.60/1,336,280.40 = 418,461.60/x
  3. Step 3: Cross multiply
    890,853.60x = 1,336,280.40 × 418,461.60
  4. Step 4: Simplify right side
    890,853.60x = 559,182,034,232.64
  5. Step 5: Solve for x
    x = 559,182,034,232.64/890,853.60
  6. Step 6: Final answer
    x = 627,692.40

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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.