Home / 790,557.66-1,090,964.50-427,978.85

Finding the Fourth Proportional to 790,557.66, 1,090,964.50 and 427,978.85

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Solution

The fourth proportional to 790,557.66, 1,090,964.50 and 427,978.85 is: 590,608.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,557.66 : 1,090,964.50 = 427,978.85 : x
  2. Step 2: Convert to fraction form
    790,557.66/1,090,964.50 = 427,978.85/x
  3. Step 3: Cross multiply
    790,557.66x = 1,090,964.50 × 427,978.85
  4. Step 4: Simplify right side
    790,557.66x = 466,909,725,576.06
  5. Step 5: Solve for x
    x = 466,909,725,576.06/790,557.66
  6. Step 6: Final answer
    x = 590,608.06

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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.