Home / 3,134,909.69-4,702,322.49-860,431.40

Finding the Fourth Proportional to 3,134,909.69, 4,702,322.49 and 860,431.40

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Solution

The fourth proportional to 3,134,909.69, 4,702,322.49 and 860,431.40 is: 1,290,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134,909.69 : 4,702,322.49 = 860,431.40 : x
  2. Step 2: Convert to fraction form
    3,134,909.69/4,702,322.49 = 860,431.40/x
  3. Step 3: Cross multiply
    3,134,909.69x = 4,702,322.49 × 860,431.40
  4. Step 4: Simplify right side
    3,134,909.69x = 4,046,025,899,810.57
  5. Step 5: Solve for x
    x = 4,046,025,899,810.57/3,134,909.69
  6. Step 6: Final answer
    x = 1,290,635.55

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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.