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Finding the Fourth Proportional to 790,531, 1,185,799.50 and 191,491

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Solution

The fourth proportional to 790,531, 1,185,799.50 and 191,491 is: 287,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,531 : 1,185,799.50 = 191,491 : x
  2. Step 2: Convert to fraction form
    790,531/1,185,799.50 = 191,491/x
  3. Step 3: Cross multiply
    790,531x = 1,185,799.50 × 191,491
  4. Step 4: Simplify right side
    790,531x = 227,069,932,054.50
  5. Step 5: Solve for x
    x = 227,069,932,054.50/790,531
  6. Step 6: Final answer
    x = 287,237.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.