Home / 786,288.72-1,085,072.93-446,756.97

Finding the Fourth Proportional to 786,288.72, 1,085,072.93 and 446,756.97

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Solution

The fourth proportional to 786,288.72, 1,085,072.93 and 446,756.97 is: 616,521.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,288.72 : 1,085,072.93 = 446,756.97 : x
  2. Step 2: Convert to fraction form
    786,288.72/1,085,072.93 = 446,756.97/x
  3. Step 3: Cross multiply
    786,288.72x = 1,085,072.93 × 446,756.97
  4. Step 4: Simplify right side
    786,288.72x = 484,763,891,842.86
  5. Step 5: Solve for x
    x = 484,763,891,842.86/786,288.72
  6. Step 6: Final answer
    x = 616,521.49

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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.