Home / 779,220.80-1,168,823.70-419,559.74

Finding the Fourth Proportional to 779,220.80, 1,168,823.70 and 419,559.74

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Solution

The fourth proportional to 779,220.80, 1,168,823.70 and 419,559.74 is: 629,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,220.80 : 1,168,823.70 = 419,559.74 : x
  2. Step 2: Convert to fraction form
    779,220.80/1,168,823.70 = 419,559.74/x
  3. Step 3: Cross multiply
    779,220.80x = 1,168,823.70 × 419,559.74
  4. Step 4: Simplify right side
    779,220.80x = 490,391,367,677.84
  5. Step 5: Solve for x
    x = 490,391,367,677.84/779,220.80
  6. Step 6: Final answer
    x = 629,335.57

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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.