Home / 814,430.40-1,221,645.60-755,381.40

Finding the Fourth Proportional to 814,430.40, 1,221,645.60 and 755,381.40

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Solution

The fourth proportional to 814,430.40, 1,221,645.60 and 755,381.40 is: 1,133,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,430.40 : 1,221,645.60 = 755,381.40 : x
  2. Step 2: Convert to fraction form
    814,430.40/1,221,645.60 = 755,381.40/x
  3. Step 3: Cross multiply
    814,430.40x = 1,221,645.60 × 755,381.40
  4. Step 4: Simplify right side
    814,430.40x = 922,808,363,631.84
  5. Step 5: Solve for x
    x = 922,808,363,631.84/814,430.40
  6. Step 6: Final answer
    x = 1,133,072.10

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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.