Home / 1,437,178.57-2,156,130.35-477,639.20

Finding the Fourth Proportional to 1,437,178.57, 2,156,130.35 and 477,639.20

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Solution

The fourth proportional to 1,437,178.57, 2,156,130.35 and 477,639.20 is: 716,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,178.57 : 2,156,130.35 = 477,639.20 : x
  2. Step 2: Convert to fraction form
    1,437,178.57/2,156,130.35 = 477,639.20/x
  3. Step 3: Cross multiply
    1,437,178.57x = 2,156,130.35 × 477,639.20
  4. Step 4: Simplify right side
    1,437,178.57x = 1,029,852,375,469.72
  5. Step 5: Solve for x
    x = 1,029,852,375,469.72/1,437,178.57
  6. Step 6: Final answer
    x = 716,579.27

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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.