Home / 1,249,401.78-1,872,727.18-816,940.90

Finding the Fourth Proportional to 1,249,401.78, 1,872,727.18 and 816,940.90

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Solution

The fourth proportional to 1,249,401.78, 1,872,727.18 and 816,940.90 is: 1,224,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,401.78 : 1,872,727.18 = 816,940.90 : x
  2. Step 2: Convert to fraction form
    1,249,401.78/1,872,727.18 = 816,940.90/x
  3. Step 3: Cross multiply
    1,249,401.78x = 1,872,727.18 × 816,940.90
  4. Step 4: Simplify right side
    1,249,401.78x = 1,529,907,429,666.94
  5. Step 5: Solve for x
    x = 1,529,907,429,666.94/1,249,401.78
  6. Step 6: Final answer
    x = 1,224,511.97

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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.