Home / 786,550.99-1,085,398.54-464,143.45

Finding the Fourth Proportional to 786,550.99, 1,085,398.54 and 464,143.45

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Solution

The fourth proportional to 786,550.99, 1,085,398.54 and 464,143.45 is: 640,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,550.99 : 1,085,398.54 = 464,143.45 : x
  2. Step 2: Convert to fraction form
    786,550.99/1,085,398.54 = 464,143.45/x
  3. Step 3: Cross multiply
    786,550.99x = 1,085,398.54 × 464,143.45
  4. Step 4: Simplify right side
    786,550.99x = 503,780,622,980.56
  5. Step 5: Solve for x
    x = 503,780,622,980.56/786,550.99
  6. Step 6: Final answer
    x = 640,493.28

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Double scale
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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.