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Finding the Fourth Proportional to 893,062.16, 1,232,420.88 and 485,160.80

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Solution

The fourth proportional to 893,062.16, 1,232,420.88 and 485,160.80 is: 669,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,062.16 : 1,232,420.88 = 485,160.80 : x
  2. Step 2: Convert to fraction form
    893,062.16/1,232,420.88 = 485,160.80/x
  3. Step 3: Cross multiply
    893,062.16x = 1,232,420.88 × 485,160.80
  4. Step 4: Simplify right side
    893,062.16x = 597,922,300,077.50
  5. Step 5: Solve for x
    x = 597,922,300,077.50/893,062.16
  6. Step 6: Final answer
    x = 669,519.24

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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.