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Finding the Fourth Proportional to 658,717.82, 908,988.36 and 368,353.32

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Solution

The fourth proportional to 658,717.82, 908,988.36 and 368,353.32 is: 508,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,717.82 : 908,988.36 = 368,353.32 : x
  2. Step 2: Convert to fraction form
    658,717.82/908,988.36 = 368,353.32/x
  3. Step 3: Cross multiply
    658,717.82x = 908,988.36 × 368,353.32
  4. Step 4: Simplify right side
    658,717.82x = 334,828,880,247.36
  5. Step 5: Solve for x
    x = 334,828,880,247.36/658,717.82
  6. Step 6: Final answer
    x = 508,303.97

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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.