Home / 851,127.12-1,276,982.32-290,555.28

Finding the Fourth Proportional to 851,127.12, 1,276,982.32 and 290,555.28

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Solution

The fourth proportional to 851,127.12, 1,276,982.32 and 290,555.28 is: 435,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,127.12 : 1,276,982.32 = 290,555.28 : x
  2. Step 2: Convert to fraction form
    851,127.12/1,276,982.32 = 290,555.28/x
  3. Step 3: Cross multiply
    851,127.12x = 1,276,982.32 × 290,555.28
  4. Step 4: Simplify right side
    851,127.12x = 371,033,955,542.65
  5. Step 5: Solve for x
    x = 371,033,955,542.65/851,127.12
  6. Step 6: Final answer
    x = 435,932.48

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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.