Home / 905,140.95-1,248,955.79-523,094.01

Finding the Fourth Proportional to 905,140.95, 1,248,955.79 and 523,094.01

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Solution

The fourth proportional to 905,140.95, 1,248,955.79 and 523,094.01 is: 721,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,140.95 : 1,248,955.79 = 523,094.01 : x
  2. Step 2: Convert to fraction form
    905,140.95/1,248,955.79 = 523,094.01/x
  3. Step 3: Cross multiply
    905,140.95x = 1,248,955.79 × 523,094.01
  4. Step 4: Simplify right side
    905,140.95x = 653,321,292,503.82
  5. Step 5: Solve for x
    x = 653,321,292,503.82/905,140.95
  6. Step 6: Final answer
    x = 721,789.56

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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.