Home / 2,918,719.40-4,378,079.10-1,025,652.20

Finding the Fourth Proportional to 2,918,719.40, 4,378,079.10 and 1,025,652.20

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Solution

The fourth proportional to 2,918,719.40, 4,378,079.10 and 1,025,652.20 is: 1,538,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,719.40 : 4,378,079.10 = 1,025,652.20 : x
  2. Step 2: Convert to fraction form
    2,918,719.40/4,378,079.10 = 1,025,652.20/x
  3. Step 3: Cross multiply
    2,918,719.40x = 4,378,079.10 × 1,025,652.20
  4. Step 4: Simplify right side
    2,918,719.40x = 4,490,386,460,689.02
  5. Step 5: Solve for x
    x = 4,490,386,460,689.02/2,918,719.40
  6. Step 6: Final answer
    x = 1,538,478.30

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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.