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Finding the Fourth Proportional to 658,637.40, 986,573.70 and 362,803.80

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Solution

The fourth proportional to 658,637.40, 986,573.70 and 362,803.80 is: 543,444.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,637.40 : 986,573.70 = 362,803.80 : x
  2. Step 2: Convert to fraction form
    658,637.40/986,573.70 = 362,803.80/x
  3. Step 3: Cross multiply
    658,637.40x = 986,573.70 × 362,803.80
  4. Step 4: Simplify right side
    658,637.40x = 357,932,687,340.06
  5. Step 5: Solve for x
    x = 357,932,687,340.06/658,637.40
  6. Step 6: Final answer
    x = 543,444.22

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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.