Home / 3,260,315.20-4,890,688.80-864,126.40

Finding the Fourth Proportional to 3,260,315.20, 4,890,688.80 and 864,126.40

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Solution

The fourth proportional to 3,260,315.20, 4,890,688.80 and 864,126.40 is: 1,296,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260,315.20 : 4,890,688.80 = 864,126.40 : x
  2. Step 2: Convert to fraction form
    3,260,315.20/4,890,688.80 = 864,126.40/x
  3. Step 3: Cross multiply
    3,260,315.20x = 4,890,688.80 × 864,126.40
  4. Step 4: Simplify right side
    3,260,315.20x = 4,226,173,306,264.32
  5. Step 5: Solve for x
    x = 4,226,173,306,264.32/3,260,315.20
  6. Step 6: Final answer
    x = 1,296,246.85

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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.