Home / 2,918,809.40-4,378,214.10-1,025,742.20

Finding the Fourth Proportional to 2,918,809.40, 4,378,214.10 and 1,025,742.20

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Solution

The fourth proportional to 2,918,809.40, 4,378,214.10 and 1,025,742.20 is: 1,538,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,809.40 : 4,378,214.10 = 1,025,742.20 : x
  2. Step 2: Convert to fraction form
    2,918,809.40/4,378,214.10 = 1,025,742.20/x
  3. Step 3: Cross multiply
    2,918,809.40x = 4,378,214.10 × 1,025,742.20
  4. Step 4: Simplify right side
    2,918,809.40x = 4,490,918,963,005.02
  5. Step 5: Solve for x
    x = 4,490,918,963,005.02/2,918,809.40
  6. Step 6: Final answer
    x = 1,538,613.30

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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.