Home / 808,532.70-1,212,799.05-572,142.30

Finding the Fourth Proportional to 808,532.70, 1,212,799.05 and 572,142.30

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Solution

The fourth proportional to 808,532.70, 1,212,799.05 and 572,142.30 is: 858,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,532.70 : 1,212,799.05 = 572,142.30 : x
  2. Step 2: Convert to fraction form
    808,532.70/1,212,799.05 = 572,142.30/x
  3. Step 3: Cross multiply
    808,532.70x = 1,212,799.05 × 572,142.30
  4. Step 4: Simplify right side
    808,532.70x = 693,893,637,904.82
  5. Step 5: Solve for x
    x = 693,893,637,904.82/808,532.70
  6. Step 6: Final answer
    x = 858,213.45

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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.