Home / 1,376,977.60-2,065,468.02-430,353.28

Finding the Fourth Proportional to 1,376,977.60, 2,065,468.02 and 430,353.28

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Solution

The fourth proportional to 1,376,977.60, 2,065,468.02 and 430,353.28 is: 645,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,977.60 : 2,065,468.02 = 430,353.28 : x
  2. Step 2: Convert to fraction form
    1,376,977.60/2,065,468.02 = 430,353.28/x
  3. Step 3: Cross multiply
    1,376,977.60x = 2,065,468.02 × 430,353.28
  4. Step 4: Simplify right side
    1,376,977.60x = 888,880,937,142.11
  5. Step 5: Solve for x
    x = 888,880,937,142.11/1,376,977.60
  6. Step 6: Final answer
    x = 645,530.43

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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.