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Finding the Fourth Proportional to 487,447.10, 730,133.85 and 404,503.10

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Solution

The fourth proportional to 487,447.10, 730,133.85 and 404,503.10 is: 605,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,447.10 : 730,133.85 = 404,503.10 : x
  2. Step 2: Convert to fraction form
    487,447.10/730,133.85 = 404,503.10/x
  3. Step 3: Cross multiply
    487,447.10x = 730,133.85 × 404,503.10
  4. Step 4: Simplify right side
    487,447.10x = 295,341,405,739.94
  5. Step 5: Solve for x
    x = 295,341,405,739.94/487,447.10
  6. Step 6: Final answer
    x = 605,894.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.