Home / 912,904.40-1,369,356.60-629,469.20

Finding the Fourth Proportional to 912,904.40, 1,369,356.60 and 629,469.20

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Solution

The fourth proportional to 912,904.40, 1,369,356.60 and 629,469.20 is: 944,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,904.40 : 1,369,356.60 = 629,469.20 : x
  2. Step 2: Convert to fraction form
    912,904.40/1,369,356.60 = 629,469.20/x
  3. Step 3: Cross multiply
    912,904.40x = 1,369,356.60 × 629,469.20
  4. Step 4: Simplify right side
    912,904.40x = 861,967,803,516.72
  5. Step 5: Solve for x
    x = 861,967,803,516.72/912,904.40
  6. Step 6: Final answer
    x = 944,203.80

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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.