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Finding the Fourth Proportional to 658,896.12, 909,270.72 and 368,507.16

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Solution

The fourth proportional to 658,896.12, 909,270.72 and 368,507.16 is: 508,536.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,896.12 : 909,270.72 = 368,507.16 : x
  2. Step 2: Convert to fraction form
    658,896.12/909,270.72 = 368,507.16/x
  3. Step 3: Cross multiply
    658,896.12x = 909,270.72 × 368,507.16
  4. Step 4: Simplify right side
    658,896.12x = 335,072,770,698.36
  5. Step 5: Solve for x
    x = 335,072,770,698.36/658,896.12
  6. Step 6: Final answer
    x = 508,536.57

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1.5x scale

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.