Home / 2,712,928.60-4,070,040.90-819,688.60

Finding the Fourth Proportional to 2,712,928.60, 4,070,040.90 and 819,688.60

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Solution

The fourth proportional to 2,712,928.60, 4,070,040.90 and 819,688.60 is: 1,229,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,928.60 : 4,070,040.90 = 819,688.60 : x
  2. Step 2: Convert to fraction form
    2,712,928.60/4,070,040.90 = 819,688.60/x
  3. Step 3: Cross multiply
    2,712,928.60x = 4,070,040.90 × 819,688.60
  4. Step 4: Simplify right side
    2,712,928.60x = 3,336,166,127,263.74
  5. Step 5: Solve for x
    x = 3,336,166,127,263.74/2,712,928.60
  6. Step 6: Final answer
    x = 1,229,728.69

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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.