Home / 2,116,909.10-2,921,585.02-1,257,472.78

Finding the Fourth Proportional to 2,116,909.10, 2,921,585.02 and 1,257,472.78

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Solution

The fourth proportional to 2,116,909.10, 2,921,585.02 and 1,257,472.78 is: 1,735,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,909.10 : 2,921,585.02 = 1,257,472.78 : x
  2. Step 2: Convert to fraction form
    2,116,909.10/2,921,585.02 = 1,257,472.78/x
  3. Step 3: Cross multiply
    2,116,909.10x = 2,921,585.02 × 1,257,472.78
  4. Step 4: Simplify right side
    2,116,909.10x = 3,673,813,637,105.76
  5. Step 5: Solve for x
    x = 3,673,813,637,105.76/2,116,909.10
  6. Step 6: Final answer
    x = 1,735,461.21

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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.