Home / 1,556,760.55-2,148,280.85-912,609.78

Finding the Fourth Proportional to 1,556,760.55, 2,148,280.85 and 912,609.78

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Solution

The fourth proportional to 1,556,760.55, 2,148,280.85 and 912,609.78 is: 1,259,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,760.55 : 2,148,280.85 = 912,609.78 : x
  2. Step 2: Convert to fraction form
    1,556,760.55/2,148,280.85 = 912,609.78/x
  3. Step 3: Cross multiply
    1,556,760.55x = 2,148,280.85 × 912,609.78
  4. Step 4: Simplify right side
    1,556,760.55x = 1,960,542,113,896.71
  5. Step 5: Solve for x
    x = 1,960,542,113,896.71/1,556,760.55
  6. Step 6: Final answer
    x = 1,259,372.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.