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Finding the Fourth Proportional to 658,960.30, 909,370.02 and 357,154.30

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Solution

The fourth proportional to 658,960.30, 909,370.02 and 357,154.30 is: 492,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,960.30 : 909,370.02 = 357,154.30 : x
  2. Step 2: Convert to fraction form
    658,960.30/909,370.02 = 357,154.30/x
  3. Step 3: Cross multiply
    658,960.30x = 909,370.02 × 357,154.30
  4. Step 4: Simplify right side
    658,960.30x = 324,785,412,934.09
  5. Step 5: Solve for x
    x = 324,785,412,934.09/658,960.30
  6. Step 6: Final answer
    x = 492,875.54

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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.