Home / 810,140.10-1,212,877.35-726,159.30

Finding the Fourth Proportional to 810,140.10, 1,212,877.35 and 726,159.30

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Solution

The fourth proportional to 810,140.10, 1,212,877.35 and 726,159.30 is: 1,087,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,140.10 : 1,212,877.35 = 726,159.30 : x
  2. Step 2: Convert to fraction form
    810,140.10/1,212,877.35 = 726,159.30/x
  3. Step 3: Cross multiply
    810,140.10x = 1,212,877.35 × 726,159.30
  4. Step 4: Simplify right side
    810,140.10x = 880,742,167,461.86
  5. Step 5: Solve for x
    x = 880,742,167,461.86/810,140.10
  6. Step 6: Final answer
    x = 1,087,147.97

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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.