Home / 812,101.80-1,215,819.90-497,173.80

Finding the Fourth Proportional to 812,101.80, 1,215,819.90 and 497,173.80

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Solution

The fourth proportional to 812,101.80, 1,215,819.90 and 497,173.80 is: 744,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,101.80 : 1,215,819.90 = 497,173.80 : x
  2. Step 2: Convert to fraction form
    812,101.80/1,215,819.90 = 497,173.80/x
  3. Step 3: Cross multiply
    812,101.80x = 1,215,819.90 × 497,173.80
  4. Step 4: Simplify right side
    812,101.80x = 604,473,799,798.62
  5. Step 5: Solve for x
    x = 604,473,799,798.62/812,101.80
  6. Step 6: Final answer
    x = 744,332.55

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1.5x scale

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.