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Finding the Fourth Proportional to 709,205.59, 978,699.07 and 403,282.02

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Solution

The fourth proportional to 709,205.59, 978,699.07 and 403,282.02 is: 556,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,205.59 : 978,699.07 = 403,282.02 : x
  2. Step 2: Convert to fraction form
    709,205.59/978,699.07 = 403,282.02/x
  3. Step 3: Cross multiply
    709,205.59x = 978,699.07 × 403,282.02
  4. Step 4: Simplify right side
    709,205.59x = 394,691,737,921.72
  5. Step 5: Solve for x
    x = 394,691,737,921.72/709,205.59
  6. Step 6: Final answer
    x = 556,526.55

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