Home / 814,153.73-1,220,763.36-308,392.13

Finding the Fourth Proportional to 814,153.73, 1,220,763.36 and 308,392.13

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Solution

The fourth proportional to 814,153.73, 1,220,763.36 and 308,392.13 is: 462,411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,153.73 : 1,220,763.36 = 308,392.13 : x
  2. Step 2: Convert to fraction form
    814,153.73/1,220,763.36 = 308,392.13/x
  3. Step 3: Cross multiply
    814,153.73x = 1,220,763.36 × 308,392.13
  4. Step 4: Simplify right side
    814,153.73x = 376,473,817,024.74
  5. Step 5: Solve for x
    x = 376,473,817,024.74/814,153.73
  6. Step 6: Final answer
    x = 462,411.22

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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.