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Finding the Fourth Proportional to 550,017.80, 825,026.70 and 455,539.40

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Solution

The fourth proportional to 550,017.80, 825,026.70 and 455,539.40 is: 683,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,017.80 : 825,026.70 = 455,539.40 : x
  2. Step 2: Convert to fraction form
    550,017.80/825,026.70 = 455,539.40/x
  3. Step 3: Cross multiply
    550,017.80x = 825,026.70 × 455,539.40
  4. Step 4: Simplify right side
    550,017.80x = 375,832,167,901.98
  5. Step 5: Solve for x
    x = 375,832,167,901.98/550,017.80
  6. Step 6: Final answer
    x = 683,309.10

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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.