Home / 693,142.20-1,037,963.70-455,196.60

Finding the Fourth Proportional to 693,142.20, 1,037,963.70 and 455,196.60

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Solution

The fourth proportional to 693,142.20, 1,037,963.70 and 455,196.60 is: 681,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,142.20 : 1,037,963.70 = 455,196.60 : x
  2. Step 2: Convert to fraction form
    693,142.20/1,037,963.70 = 455,196.60/x
  3. Step 3: Cross multiply
    693,142.20x = 1,037,963.70 × 455,196.60
  4. Step 4: Simplify right side
    693,142.20x = 472,477,547,163.42
  5. Step 5: Solve for x
    x = 472,477,547,163.42/693,142.20
  6. Step 6: Final answer
    x = 681,645.91

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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.