Home / 779,612.40-1,168,511.40-358,930.80

Finding the Fourth Proportional to 779,612.40, 1,168,511.40 and 358,930.80

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Solution

The fourth proportional to 779,612.40, 1,168,511.40 and 358,930.80 is: 537,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,612.40 : 1,168,511.40 = 358,930.80 : x
  2. Step 2: Convert to fraction form
    779,612.40/1,168,511.40 = 358,930.80/x
  3. Step 3: Cross multiply
    779,612.40x = 1,168,511.40 × 358,930.80
  4. Step 4: Simplify right side
    779,612.40x = 419,414,731,611.12
  5. Step 5: Solve for x
    x = 419,414,731,611.12/779,612.40
  6. Step 6: Final answer
    x = 537,978.53

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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.