Home / 1,213,143.08-1,819,947.88-465,130.76

Finding the Fourth Proportional to 1,213,143.08, 1,819,947.88 and 465,130.76

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Solution

The fourth proportional to 1,213,143.08, 1,819,947.88 and 465,130.76 is: 697,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,143.08 : 1,819,947.88 = 465,130.76 : x
  2. Step 2: Convert to fraction form
    1,213,143.08/1,819,947.88 = 465,130.76/x
  3. Step 3: Cross multiply
    1,213,143.08x = 1,819,947.88 × 465,130.76
  4. Step 4: Simplify right side
    1,213,143.08x = 846,513,740,584.79
  5. Step 5: Solve for x
    x = 846,513,740,584.79/1,213,143.08
  6. Step 6: Final answer
    x = 697,785.57

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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.