Home / 705,643.20-1,055,872.80-519,019.20

Finding the Fourth Proportional to 705,643.20, 1,055,872.80 and 519,019.20

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Solution

The fourth proportional to 705,643.20, 1,055,872.80 and 519,019.20 is: 776,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,643.20 : 1,055,872.80 = 519,019.20 : x
  2. Step 2: Convert to fraction form
    705,643.20/1,055,872.80 = 519,019.20/x
  3. Step 3: Cross multiply
    705,643.20x = 1,055,872.80 × 519,019.20
  4. Step 4: Simplify right side
    705,643.20x = 548,018,255,957.76
  5. Step 5: Solve for x
    x = 548,018,255,957.76/705,643.20
  6. Step 6: Final answer
    x = 776,622.32

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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.