Home / 905,132.07-1,355,631.39-432,149.58

Finding the Fourth Proportional to 905,132.07, 1,355,631.39 and 432,149.58

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Solution

The fourth proportional to 905,132.07, 1,355,631.39 and 432,149.58 is: 647,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,132.07 : 1,355,631.39 = 432,149.58 : x
  2. Step 2: Convert to fraction form
    905,132.07/1,355,631.39 = 432,149.58/x
  3. Step 3: Cross multiply
    905,132.07x = 1,355,631.39 × 432,149.58
  4. Step 4: Simplify right side
    905,132.07x = 585,835,535,823.32
  5. Step 5: Solve for x
    x = 585,835,535,823.32/905,132.07
  6. Step 6: Final answer
    x = 647,237.63

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1.5x scale

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.