Home / 880,809.40-1,321,214.10-670,857.40

Finding the Fourth Proportional to 880,809.40, 1,321,214.10 and 670,857.40

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Solution

The fourth proportional to 880,809.40, 1,321,214.10 and 670,857.40 is: 1,006,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,809.40 : 1,321,214.10 = 670,857.40 : x
  2. Step 2: Convert to fraction form
    880,809.40/1,321,214.10 = 670,857.40/x
  3. Step 3: Cross multiply
    880,809.40x = 1,321,214.10 × 670,857.40
  4. Step 4: Simplify right side
    880,809.40x = 886,346,255,969.34
  5. Step 5: Solve for x
    x = 886,346,255,969.34/880,809.40
  6. Step 6: Final answer
    x = 1,006,286.10

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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.