Home / 851,356.72-1,277,166.30-290,260

Finding the Fourth Proportional to 851,356.72, 1,277,166.30 and 290,260

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Solution

The fourth proportional to 851,356.72, 1,277,166.30 and 290,260 is: 435,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,356.72 : 1,277,166.30 = 290,260 : x
  2. Step 2: Convert to fraction form
    851,356.72/1,277,166.30 = 290,260/x
  3. Step 3: Cross multiply
    851,356.72x = 1,277,166.30 × 290,260
  4. Step 4: Simplify right side
    851,356.72x = 370,710,290,238
  5. Step 5: Solve for x
    x = 370,710,290,238/851,356.72
  6. Step 6: Final answer
    x = 435,434.74

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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.