Home / 779,635.80-1,168,578.90-442,837.80

Finding the Fourth Proportional to 779,635.80, 1,168,578.90 and 442,837.80

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Solution

The fourth proportional to 779,635.80, 1,168,578.90 and 442,837.80 is: 663,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,635.80 : 1,168,578.90 = 442,837.80 : x
  2. Step 2: Convert to fraction form
    779,635.80/1,168,578.90 = 442,837.80/x
  3. Step 3: Cross multiply
    779,635.80x = 1,168,578.90 × 442,837.80
  4. Step 4: Simplify right side
    779,635.80x = 517,490,909,202.42
  5. Step 5: Solve for x
    x = 517,490,909,202.42/779,635.80
  6. Step 6: Final answer
    x = 663,759.81

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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.