Home / 1,265,616.20-1,898,424.30-424,195.40

Finding the Fourth Proportional to 1,265,616.20, 1,898,424.30 and 424,195.40

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Solution

The fourth proportional to 1,265,616.20, 1,898,424.30 and 424,195.40 is: 636,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,616.20 : 1,898,424.30 = 424,195.40 : x
  2. Step 2: Convert to fraction form
    1,265,616.20/1,898,424.30 = 424,195.40/x
  3. Step 3: Cross multiply
    1,265,616.20x = 1,898,424.30 × 424,195.40
  4. Step 4: Simplify right side
    1,265,616.20x = 805,302,855,308.22
  5. Step 5: Solve for x
    x = 805,302,855,308.22/1,265,616.20
  6. Step 6: Final answer
    x = 636,293.10

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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.