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Finding the Fourth Proportional to 658,818.84, 909,171.18 and 357,012.84

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Solution

The fourth proportional to 658,818.84, 909,171.18 and 357,012.84 is: 492,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,818.84 : 909,171.18 = 357,012.84 : x
  2. Step 2: Convert to fraction form
    658,818.84/909,171.18 = 357,012.84/x
  3. Step 3: Cross multiply
    658,818.84x = 909,171.18 × 357,012.84
  4. Step 4: Simplify right side
    658,818.84x = 324,585,785,017.95
  5. Step 5: Solve for x
    x = 324,585,785,017.95/658,818.84
  6. Step 6: Final answer
    x = 492,678.36

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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.