Home / 1,237,938.18-1,857,441.78-669,719.52

Finding the Fourth Proportional to 1,237,938.18, 1,857,441.78 and 669,719.52

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Solution

The fourth proportional to 1,237,938.18, 1,857,441.78 and 669,719.52 is: 1,004,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,938.18 : 1,857,441.78 = 669,719.52 : x
  2. Step 2: Convert to fraction form
    1,237,938.18/1,857,441.78 = 669,719.52/x
  3. Step 3: Cross multiply
    1,237,938.18x = 1,857,441.78 × 669,719.52
  4. Step 4: Simplify right side
    1,237,938.18x = 1,243,965,017,329.55
  5. Step 5: Solve for x
    x = 1,243,965,017,329.55/1,237,938.18
  6. Step 6: Final answer
    x = 1,004,868.45

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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.