Home / 788,176.50-1,087,684.83-448,644.78

Finding the Fourth Proportional to 788,176.50, 1,087,684.83 and 448,644.78

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Solution

The fourth proportional to 788,176.50, 1,087,684.83 and 448,644.78 is: 619,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,176.50 : 1,087,684.83 = 448,644.78 : x
  2. Step 2: Convert to fraction form
    788,176.50/1,087,684.83 = 448,644.78/x
  3. Step 3: Cross multiply
    788,176.50x = 1,087,684.83 × 448,644.78
  4. Step 4: Simplify right side
    788,176.50x = 487,984,121,264.69
  5. Step 5: Solve for x
    x = 487,984,121,264.69/788,176.50
  6. Step 6: Final answer
    x = 619,130.51

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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.