Home / 855,141.60-1,285,822.80-836,479.20

Finding the Fourth Proportional to 855,141.60, 1,285,822.80 and 836,479.20

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Solution

The fourth proportional to 855,141.60, 1,285,822.80 and 836,479.20 is: 1,257,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,141.60 : 1,285,822.80 = 836,479.20 : x
  2. Step 2: Convert to fraction form
    855,141.60/1,285,822.80 = 836,479.20/x
  3. Step 3: Cross multiply
    855,141.60x = 1,285,822.80 × 836,479.20
  4. Step 4: Simplify right side
    855,141.60x = 1,075,564,027,085.76
  5. Step 5: Solve for x
    x = 1,075,564,027,085.76/855,141.60
  6. Step 6: Final answer
    x = 1,257,761.32

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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.