Home / 808,539.70-1,212,809.55-572,149.30

Finding the Fourth Proportional to 808,539.70, 1,212,809.55 and 572,149.30

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Solution

The fourth proportional to 808,539.70, 1,212,809.55 and 572,149.30 is: 858,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,539.70 : 1,212,809.55 = 572,149.30 : x
  2. Step 2: Convert to fraction form
    808,539.70/1,212,809.55 = 572,149.30/x
  3. Step 3: Cross multiply
    808,539.70x = 1,212,809.55 × 572,149.30
  4. Step 4: Simplify right side
    808,539.70x = 693,908,135,065.82
  5. Step 5: Solve for x
    x = 693,908,135,065.82/808,539.70
  6. Step 6: Final answer
    x = 858,223.95

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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.