Home / 876,407.58-1,315,155.69-561,090.78

Finding the Fourth Proportional to 876,407.58, 1,315,155.69 and 561,090.78

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Solution

The fourth proportional to 876,407.58, 1,315,155.69 and 561,090.78 is: 841,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,407.58 : 1,315,155.69 = 561,090.78 : x
  2. Step 2: Convert to fraction form
    876,407.58/1,315,155.69 = 561,090.78/x
  3. Step 3: Cross multiply
    876,407.58x = 1,315,155.69 × 561,090.78
  4. Step 4: Simplify right side
    876,407.58x = 737,921,731,923.54
  5. Step 5: Solve for x
    x = 737,921,731,923.54/876,407.58
  6. Step 6: Final answer
    x = 841,984.65

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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.