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Finding the Fourth Proportional to 658,337.09, 908,254.81 and 486,667.24

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Solution

The fourth proportional to 658,337.09, 908,254.81 and 486,667.24 is: 671,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,337.09 : 908,254.81 = 486,667.24 : x
  2. Step 2: Convert to fraction form
    658,337.09/908,254.81 = 486,667.24/x
  3. Step 3: Cross multiply
    658,337.09x = 908,254.81 × 486,667.24
  4. Step 4: Simplify right side
    658,337.09x = 442,017,861,599.42
  5. Step 5: Solve for x
    x = 442,017,861,599.42/658,337.09
  6. Step 6: Final answer
    x = 671,415.71

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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.