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Finding the Fourth Proportional to 658,960.98, 909,366.93 and 357,154.98

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Solution

The fourth proportional to 658,960.98, 909,366.93 and 357,154.98 is: 492,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,960.98 : 909,366.93 = 357,154.98 : x
  2. Step 2: Convert to fraction form
    658,960.98/909,366.93 = 357,154.98/x
  3. Step 3: Cross multiply
    658,960.98x = 909,366.93 × 357,154.98
  4. Step 4: Simplify right side
    658,960.98x = 324,784,927,696.81
  5. Step 5: Solve for x
    x = 324,784,927,696.81/658,960.98
  6. Step 6: Final answer
    x = 492,874.29

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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.