Home / 511,220.74-705,487.42-296,488.12

Finding the Fourth Proportional to 511,220.74, 705,487.42 and 296,488.12

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Solution

The fourth proportional to 511,220.74, 705,487.42 and 296,488.12 is: 409,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,220.74 : 705,487.42 = 296,488.12 : x
  2. Step 2: Convert to fraction form
    511,220.74/705,487.42 = 296,488.12/x
  3. Step 3: Cross multiply
    511,220.74x = 705,487.42 × 296,488.12
  4. Step 4: Simplify right side
    511,220.74x = 209,168,638,839.45
  5. Step 5: Solve for x
    x = 209,168,638,839.45/511,220.74
  6. Step 6: Final answer
    x = 409,155.23

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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.