Home / 1,294,465.40-1,940,315.70-495,438.20

Finding the Fourth Proportional to 1,294,465.40, 1,940,315.70 and 495,438.20

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Solution

The fourth proportional to 1,294,465.40, 1,940,315.70 and 495,438.20 is: 742,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,465.40 : 1,940,315.70 = 495,438.20 : x
  2. Step 2: Convert to fraction form
    1,294,465.40/1,940,315.70 = 495,438.20/x
  3. Step 3: Cross multiply
    1,294,465.40x = 1,940,315.70 × 495,438.20
  4. Step 4: Simplify right side
    1,294,465.40x = 961,306,517,839.74
  5. Step 5: Solve for x
    x = 961,306,517,839.74/1,294,465.40
  6. Step 6: Final answer
    x = 742,628.21

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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.