Home / 854,836.40-1,282,254.60-815,470.40

Finding the Fourth Proportional to 854,836.40, 1,282,254.60 and 815,470.40

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Solution

The fourth proportional to 854,836.40, 1,282,254.60 and 815,470.40 is: 1,223,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,836.40 : 1,282,254.60 = 815,470.40 : x
  2. Step 2: Convert to fraction form
    854,836.40/1,282,254.60 = 815,470.40/x
  3. Step 3: Cross multiply
    854,836.40x = 1,282,254.60 × 815,470.40
  4. Step 4: Simplify right side
    854,836.40x = 1,045,640,671,563.84
  5. Step 5: Solve for x
    x = 1,045,640,671,563.84/854,836.40
  6. Step 6: Final answer
    x = 1,223,205.60

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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.