Home / 1,142,240.40-1,576,291.64-632,942.78

Finding the Fourth Proportional to 1,142,240.40, 1,576,291.64 and 632,942.78

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Solution

The fourth proportional to 1,142,240.40, 1,576,291.64 and 632,942.78 is: 873,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,240.40 : 1,576,291.64 = 632,942.78 : x
  2. Step 2: Convert to fraction form
    1,142,240.40/1,576,291.64 = 632,942.78/x
  3. Step 3: Cross multiply
    1,142,240.40x = 1,576,291.64 × 632,942.78
  4. Step 4: Simplify right side
    1,142,240.40x = 997,702,401,666.19
  5. Step 5: Solve for x
    x = 997,702,401,666.19/1,142,240.40
  6. Step 6: Final answer
    x = 873,460.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.