Home / 662,146.00-913,791.56-390,225.35

Finding the Fourth Proportional to 662,146.00, 913,791.56 and 390,225.35

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Solution

The fourth proportional to 662,146.00, 913,791.56 and 390,225.35 is: 538,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,146.00 : 913,791.56 = 390,225.35 : x
  2. Step 2: Convert to fraction form
    662,146.00/913,791.56 = 390,225.35/x
  3. Step 3: Cross multiply
    662,146.00x = 913,791.56 × 390,225.35
  4. Step 4: Simplify right side
    662,146.00x = 356,584,631,661.40
  5. Step 5: Solve for x
    x = 356,584,631,661.40/662,146.00
  6. Step 6: Final answer
    x = 538,528.71

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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.