Home / 779,826.80-1,170,047.40-306,431.60

Finding the Fourth Proportional to 779,826.80, 1,170,047.40 and 306,431.60

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Solution

The fourth proportional to 779,826.80, 1,170,047.40 and 306,431.60 is: 459,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,826.80 : 1,170,047.40 = 306,431.60 : x
  2. Step 2: Convert to fraction form
    779,826.80/1,170,047.40 = 306,431.60/x
  3. Step 3: Cross multiply
    779,826.80x = 1,170,047.40 × 306,431.60
  4. Step 4: Simplify right side
    779,826.80x = 358,539,496,857.84
  5. Step 5: Solve for x
    x = 358,539,496,857.84/779,826.80
  6. Step 6: Final answer
    x = 459,768.11

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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.