Home / 766,384.92-1,057,643.64-426,853.14

Finding the Fourth Proportional to 766,384.92, 1,057,643.64 and 426,853.14

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Solution

The fourth proportional to 766,384.92, 1,057,643.64 and 426,853.14 is: 589,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,384.92 : 1,057,643.64 = 426,853.14 : x
  2. Step 2: Convert to fraction form
    766,384.92/1,057,643.64 = 426,853.14/x
  3. Step 3: Cross multiply
    766,384.92x = 1,057,643.64 × 426,853.14
  4. Step 4: Simplify right side
    766,384.92x = 451,458,508,735.03
  5. Step 5: Solve for x
    x = 451,458,508,735.03/766,384.92
  6. Step 6: Final answer
    x = 589,075.41

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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.