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Finding the Fourth Proportional to 650,963.48, 898,436.00 and 389,301.68

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Solution

The fourth proportional to 650,963.48, 898,436.00 and 389,301.68 is: 537,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,963.48 : 898,436.00 = 389,301.68 : x
  2. Step 2: Convert to fraction form
    650,963.48/898,436.00 = 389,301.68/x
  3. Step 3: Cross multiply
    650,963.48x = 898,436.00 × 389,301.68
  4. Step 4: Simplify right side
    650,963.48x = 349,762,637,733.79
  5. Step 5: Solve for x
    x = 349,762,637,733.79/650,963.48
  6. Step 6: Final answer
    x = 537,299.94

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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.