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Finding the Fourth Proportional to 611,454.94, 843,885.65 and 369,739.22

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Solution

The fourth proportional to 611,454.94, 843,885.65 and 369,739.22 is: 510,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,454.94 : 843,885.65 = 369,739.22 : x
  2. Step 2: Convert to fraction form
    611,454.94/843,885.65 = 369,739.22/x
  3. Step 3: Cross multiply
    611,454.94x = 843,885.65 × 369,739.22
  4. Step 4: Simplify right side
    611,454.94x = 312,017,622,000.19
  5. Step 5: Solve for x
    x = 312,017,622,000.19/611,454.94
  6. Step 6: Final answer
    x = 510,287.19

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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.