Home / 983,136.72-1,356,713.64-553,415.52

Finding the Fourth Proportional to 983,136.72, 1,356,713.64 and 553,415.52

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Solution

The fourth proportional to 983,136.72, 1,356,713.64 and 553,415.52 is: 763,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,136.72 : 1,356,713.64 = 553,415.52 : x
  2. Step 2: Convert to fraction form
    983,136.72/1,356,713.64 = 553,415.52/x
  3. Step 3: Cross multiply
    983,136.72x = 1,356,713.64 × 553,415.52
  4. Step 4: Simplify right side
    983,136.72x = 750,826,384,571.69
  5. Step 5: Solve for x
    x = 750,826,384,571.69/983,136.72
  6. Step 6: Final answer
    x = 763,704.96

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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.