Home / 747,890.72-1,032,091.93-408,358.97

Finding the Fourth Proportional to 747,890.72, 1,032,091.93 and 408,358.97

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Solution

The fourth proportional to 747,890.72, 1,032,091.93 and 408,358.97 is: 563,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,890.72 : 1,032,091.93 = 408,358.97 : x
  2. Step 2: Convert to fraction form
    747,890.72/1,032,091.93 = 408,358.97/x
  3. Step 3: Cross multiply
    747,890.72x = 1,032,091.93 × 408,358.97
  4. Step 4: Simplify right side
    747,890.72x = 421,463,994,403.43
  5. Step 5: Solve for x
    x = 421,463,994,403.43/747,890.72
  6. Step 6: Final answer
    x = 563,536.87

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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.