Home / 766,123.44-1,057,240.35-421,952.82

Finding the Fourth Proportional to 766,123.44, 1,057,240.35 and 421,952.82

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Solution

The fourth proportional to 766,123.44, 1,057,240.35 and 421,952.82 is: 582,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,123.44 : 1,057,240.35 = 421,952.82 : x
  2. Step 2: Convert to fraction form
    766,123.44/1,057,240.35 = 421,952.82/x
  3. Step 3: Cross multiply
    766,123.44x = 1,057,240.35 × 421,952.82
  4. Step 4: Simplify right side
    766,123.44x = 446,105,547,100.29
  5. Step 5: Solve for x
    x = 446,105,547,100.29/766,123.44
  6. Step 6: Final answer
    x = 582,289.39

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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.