Home / 5,280,281.40-7,920,355.20-1,686,002.76

Finding the Fourth Proportional to 5,280,281.40, 7,920,355.20 and 1,686,002.76

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Solution

The fourth proportional to 5,280,281.40, 7,920,355.20 and 1,686,002.76 is: 2,528,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,281.40 : 7,920,355.20 = 1,686,002.76 : x
  2. Step 2: Convert to fraction form
    5,280,281.40/7,920,355.20 = 1,686,002.76/x
  3. Step 3: Cross multiply
    5,280,281.40x = 7,920,355.20 × 1,686,002.76
  4. Step 4: Simplify right side
    5,280,281.40x = 13,353,740,727,380.35
  5. Step 5: Solve for x
    x = 13,353,740,727,380.35/5,280,281.40
  6. Step 6: Final answer
    x = 2,528,982.78

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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.