Home / 786,424.39-1,085,255.28-442,260.23

Finding the Fourth Proportional to 786,424.39, 1,085,255.28 and 442,260.23

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Solution

The fourth proportional to 786,424.39, 1,085,255.28 and 442,260.23 is: 610,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,424.39 : 1,085,255.28 = 442,260.23 : x
  2. Step 2: Convert to fraction form
    786,424.39/1,085,255.28 = 442,260.23/x
  3. Step 3: Cross multiply
    786,424.39x = 1,085,255.28 × 442,260.23
  4. Step 4: Simplify right side
    786,424.39x = 479,965,244,315.24
  5. Step 5: Solve for x
    x = 479,965,244,315.24/786,424.39
  6. Step 6: Final answer
    x = 610,313.28

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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.