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Finding the Fourth Proportional to 587,092.71, 810,191.04 and 328,970.20

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Solution

The fourth proportional to 587,092.71, 810,191.04 and 328,970.20 is: 453,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,092.71 : 810,191.04 = 328,970.20 : x
  2. Step 2: Convert to fraction form
    587,092.71/810,191.04 = 328,970.20/x
  3. Step 3: Cross multiply
    587,092.71x = 810,191.04 × 328,970.20
  4. Step 4: Simplify right side
    587,092.71x = 266,528,708,467.01
  5. Step 5: Solve for x
    x = 266,528,708,467.01/587,092.71
  6. Step 6: Final answer
    x = 453,980.62

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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.