Home / 825,056.61-1,138,643.72-485,590.47

Finding the Fourth Proportional to 825,056.61, 1,138,643.72 and 485,590.47

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Solution

The fourth proportional to 825,056.61, 1,138,643.72 and 485,590.47 is: 670,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,056.61 : 1,138,643.72 = 485,590.47 : x
  2. Step 2: Convert to fraction form
    825,056.61/1,138,643.72 = 485,590.47/x
  3. Step 3: Cross multiply
    825,056.61x = 1,138,643.72 × 485,590.47
  4. Step 4: Simplify right side
    825,056.61x = 552,914,539,157.35
  5. Step 5: Solve for x
    x = 552,914,539,157.35/825,056.61
  6. Step 6: Final answer
    x = 670,153.46

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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.