Home / 1,138,821.93-1,571,512.59-629,491.50

Finding the Fourth Proportional to 1,138,821.93, 1,571,512.59 and 629,491.50

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Solution

The fourth proportional to 1,138,821.93, 1,571,512.59 and 629,491.50 is: 868,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,821.93 : 1,571,512.59 = 629,491.50 : x
  2. Step 2: Convert to fraction form
    1,138,821.93/1,571,512.59 = 629,491.50/x
  3. Step 3: Cross multiply
    1,138,821.93x = 1,571,512.59 × 629,491.50
  4. Step 4: Simplify right side
    1,138,821.93x = 989,253,817,547.99
  5. Step 5: Solve for x
    x = 989,253,817,547.99/1,138,821.93
  6. Step 6: Final answer
    x = 868,664.18

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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.