Home / 922,220.82-1,272,781.35-559,623.78

Finding the Fourth Proportional to 922,220.82, 1,272,781.35 and 559,623.78

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Solution

The fourth proportional to 922,220.82, 1,272,781.35 and 559,623.78 is: 772,351.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,220.82 : 1,272,781.35 = 559,623.78 : x
  2. Step 2: Convert to fraction form
    922,220.82/1,272,781.35 = 559,623.78/x
  3. Step 3: Cross multiply
    922,220.82x = 1,272,781.35 × 559,623.78
  4. Step 4: Simplify right side
    922,220.82x = 712,278,710,200.50
  5. Step 5: Solve for x
    x = 712,278,710,200.50/922,220.82
  6. Step 6: Final answer
    x = 772,351.58

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1.5x scale

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.