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Finding the Fourth Proportional to 658,009.86, 908,021.10 and 367,563.81

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Solution

The fourth proportional to 658,009.86, 908,021.10 and 367,563.81 is: 507,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,009.86 : 908,021.10 = 367,563.81 : x
  2. Step 2: Convert to fraction form
    658,009.86/908,021.10 = 367,563.81/x
  3. Step 3: Cross multiply
    658,009.86x = 908,021.10 × 367,563.81
  4. Step 4: Simplify right side
    658,009.86x = 333,755,695,076.39
  5. Step 5: Solve for x
    x = 333,755,695,076.39/658,009.86
  6. Step 6: Final answer
    x = 507,219.90

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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.