Home / 1,249,865.81-1,874,895.90-408,502.61

Finding the Fourth Proportional to 1,249,865.81, 1,874,895.90 and 408,502.61

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Solution

The fourth proportional to 1,249,865.81, 1,874,895.90 and 408,502.61 is: 612,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,865.81 : 1,874,895.90 = 408,502.61 : x
  2. Step 2: Convert to fraction form
    1,249,865.81/1,874,895.90 = 408,502.61/x
  3. Step 3: Cross multiply
    1,249,865.81x = 1,874,895.90 × 408,502.61
  4. Step 4: Simplify right side
    1,249,865.81x = 765,899,859,253.82
  5. Step 5: Solve for x
    x = 765,899,859,253.82/1,249,865.81
  6. Step 6: Final answer
    x = 612,785.67

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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.