Home / 855,100.85-1,179,525.02-564,715.09

Finding the Fourth Proportional to 855,100.85, 1,179,525.02 and 564,715.09

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Solution

The fourth proportional to 855,100.85, 1,179,525.02 and 564,715.09 is: 778,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,100.85 : 1,179,525.02 = 564,715.09 : x
  2. Step 2: Convert to fraction form
    855,100.85/1,179,525.02 = 564,715.09/x
  3. Step 3: Cross multiply
    855,100.85x = 1,179,525.02 × 564,715.09
  4. Step 4: Simplify right side
    855,100.85x = 666,095,571,928.93
  5. Step 5: Solve for x
    x = 666,095,571,928.93/855,100.85
  6. Step 6: Final answer
    x = 778,967.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.