Home / 2,918,768.40-4,378,152.60-1,025,701.20

Finding the Fourth Proportional to 2,918,768.40, 4,378,152.60 and 1,025,701.20

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Solution

The fourth proportional to 2,918,768.40, 4,378,152.60 and 1,025,701.20 is: 1,538,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,768.40 : 4,378,152.60 = 1,025,701.20 : x
  2. Step 2: Convert to fraction form
    2,918,768.40/4,378,152.60 = 1,025,701.20/x
  3. Step 3: Cross multiply
    2,918,768.40x = 4,378,152.60 × 1,025,701.20
  4. Step 4: Simplify right side
    2,918,768.40x = 4,490,676,375,603.12
  5. Step 5: Solve for x
    x = 4,490,676,375,603.12/2,918,768.40
  6. Step 6: Final answer
    x = 1,538,551.80

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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.