Home / 3,120,420.40-4,680,630.60-2,490,564.40

Finding the Fourth Proportional to 3,120,420.40, 4,680,630.60 and 2,490,564.40

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Solution

The fourth proportional to 3,120,420.40, 4,680,630.60 and 2,490,564.40 is: 3,735,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,420.40 : 4,680,630.60 = 2,490,564.40 : x
  2. Step 2: Convert to fraction form
    3,120,420.40/4,680,630.60 = 2,490,564.40/x
  3. Step 3: Cross multiply
    3,120,420.40x = 4,680,630.60 × 2,490,564.40
  4. Step 4: Simplify right side
    3,120,420.40x = 11,657,411,941,910.64
  5. Step 5: Solve for x
    x = 11,657,411,941,910.64/3,120,420.40
  6. Step 6: Final answer
    x = 3,735,846.60

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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.