Home / 805,740.40-1,208,610.60-385,836.40

Finding the Fourth Proportional to 805,740.40, 1,208,610.60 and 385,836.40

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Solution

The fourth proportional to 805,740.40, 1,208,610.60 and 385,836.40 is: 578,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,740.40 : 1,208,610.60 = 385,836.40 : x
  2. Step 2: Convert to fraction form
    805,740.40/1,208,610.60 = 385,836.40/x
  3. Step 3: Cross multiply
    805,740.40x = 1,208,610.60 × 385,836.40
  4. Step 4: Simplify right side
    805,740.40x = 466,325,962,905.84
  5. Step 5: Solve for x
    x = 466,325,962,905.84/805,740.40
  6. Step 6: Final answer
    x = 578,754.60

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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.