Home / 999,134.73-1,378,820.45-563,572.83

Finding the Fourth Proportional to 999,134.73, 1,378,820.45 and 563,572.83

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Solution

The fourth proportional to 999,134.73, 1,378,820.45 and 563,572.83 is: 777,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,134.73 : 1,378,820.45 = 563,572.83 : x
  2. Step 2: Convert to fraction form
    999,134.73/1,378,820.45 = 563,572.83/x
  3. Step 3: Cross multiply
    999,134.73x = 1,378,820.45 × 563,572.83
  4. Step 4: Simplify right side
    999,134.73x = 777,065,740,250.51
  5. Step 5: Solve for x
    x = 777,065,740,250.51/999,134.73
  6. Step 6: Final answer
    x = 777,738.69

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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.