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Finding the Fourth Proportional to 868,502.70, 1,303,920.45 and 554,352.30

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Solution

The fourth proportional to 868,502.70, 1,303,920.45 and 554,352.30 is: 832,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,502.70 : 1,303,920.45 = 554,352.30 : x
  2. Step 2: Convert to fraction form
    868,502.70/1,303,920.45 = 554,352.30/x
  3. Step 3: Cross multiply
    868,502.70x = 1,303,920.45 × 554,352.30
  4. Step 4: Simplify right side
    868,502.70x = 722,831,300,474.54
  5. Step 5: Solve for x
    x = 722,831,300,474.54/868,502.70
  6. Step 6: Final answer
    x = 832,272.95

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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.