Home / 788,401.24-1,087,994.94-448,869.64

Finding the Fourth Proportional to 788,401.24, 1,087,994.94 and 448,869.64

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Solution

The fourth proportional to 788,401.24, 1,087,994.94 and 448,869.64 is: 619,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,401.24 : 1,087,994.94 = 448,869.64 : x
  2. Step 2: Convert to fraction form
    788,401.24/1,087,994.94 = 448,869.64/x
  3. Step 3: Cross multiply
    788,401.24x = 1,087,994.94 × 448,869.64
  4. Step 4: Simplify right side
    788,401.24x = 488,367,897,039.62
  5. Step 5: Solve for x
    x = 488,367,897,039.62/788,401.24
  6. Step 6: Final answer
    x = 619,440.80

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1.5x scale

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.