Home / 801,123.90-1,105,554.03-438,581.49

Finding the Fourth Proportional to 801,123.90, 1,105,554.03 and 438,581.49

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Solution

The fourth proportional to 801,123.90, 1,105,554.03 and 438,581.49 is: 605,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,123.90 : 1,105,554.03 = 438,581.49 : x
  2. Step 2: Convert to fraction form
    801,123.90/1,105,554.03 = 438,581.49/x
  3. Step 3: Cross multiply
    801,123.90x = 1,105,554.03 × 438,581.49
  4. Step 4: Simplify right side
    801,123.90x = 484,875,533,752.91
  5. Step 5: Solve for x
    x = 484,875,533,752.91/801,123.90
  6. Step 6: Final answer
    x = 605,244.12

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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.