Home / 859,612.48-1,185,962.10-491,821

Finding the Fourth Proportional to 859,612.48, 1,185,962.10 and 491,821

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Solution

The fourth proportional to 859,612.48, 1,185,962.10 and 491,821 is: 678,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,612.48 : 1,185,962.10 = 491,821 : x
  2. Step 2: Convert to fraction form
    859,612.48/1,185,962.10 = 491,821/x
  3. Step 3: Cross multiply
    859,612.48x = 1,185,962.10 × 491,821
  4. Step 4: Simplify right side
    859,612.48x = 583,281,065,984.10
  5. Step 5: Solve for x
    x = 583,281,065,984.10/859,612.48
  6. Step 6: Final answer
    x = 678,539.55

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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.