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Finding the Fourth Proportional to 587,257.15, 810,482.10 and 329,203.79

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Solution

The fourth proportional to 587,257.15, 810,482.10 and 329,203.79 is: 454,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,257.15 : 810,482.10 = 329,203.79 : x
  2. Step 2: Convert to fraction form
    587,257.15/810,482.10 = 329,203.79/x
  3. Step 3: Cross multiply
    587,257.15x = 810,482.10 × 329,203.79
  4. Step 4: Simplify right side
    587,257.15x = 266,813,779,427.35
  5. Step 5: Solve for x
    x = 266,813,779,427.35/587,257.15
  6. Step 6: Final answer
    x = 454,338.92

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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.