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Finding the Fourth Proportional to 922,300.16, 1,374,281.78 and 821,687.24

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Solution

The fourth proportional to 922,300.16, 1,374,281.78 and 821,687.24 is: 1,224,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,300.16 : 1,374,281.78 = 821,687.24 : x
  2. Step 2: Convert to fraction form
    922,300.16/1,374,281.78 = 821,687.24/x
  3. Step 3: Cross multiply
    922,300.16x = 1,374,281.78 × 821,687.24
  4. Step 4: Simplify right side
    922,300.16x = 1,129,229,802,790.49
  5. Step 5: Solve for x
    x = 1,129,229,802,790.49/922,300.16
  6. Step 6: Final answer
    x = 1,224,362.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.