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Finding the Fourth Proportional to 818,739, 1,226,750.79 and 497,920.47

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Solution

The fourth proportional to 818,739, 1,226,750.79 and 497,920.47 is: 746,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,739 : 1,226,750.79 = 497,920.47 : x
  2. Step 2: Convert to fraction form
    818,739/1,226,750.79 = 497,920.47/x
  3. Step 3: Cross multiply
    818,739x = 1,226,750.79 × 497,920.47
  4. Step 4: Simplify right side
    818,739x = 610,824,329,929.67
  5. Step 5: Solve for x
    x = 610,824,329,929.67/818,739
  6. Step 6: Final answer
    x = 746,055.01

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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.