Home / 783,417.20-1,174,895.40-309,945.20

Finding the Fourth Proportional to 783,417.20, 1,174,895.40 and 309,945.20

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Solution

The fourth proportional to 783,417.20, 1,174,895.40 and 309,945.20 is: 464,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,417.20 : 1,174,895.40 = 309,945.20 : x
  2. Step 2: Convert to fraction form
    783,417.20/1,174,895.40 = 309,945.20/x
  3. Step 3: Cross multiply
    783,417.20x = 1,174,895.40 × 309,945.20
  4. Step 4: Simplify right side
    783,417.20x = 364,153,189,732.08
  5. Step 5: Solve for x
    x = 364,153,189,732.08/783,417.20
  6. Step 6: Final answer
    x = 464,826.65

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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.