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Finding the Fourth Proportional to 707,378.86, 974,322.63 and 543,722.01

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Solution

The fourth proportional to 707,378.86, 974,322.63 and 543,722.01 is: 748,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,378.86 : 974,322.63 = 543,722.01 : x
  2. Step 2: Convert to fraction form
    707,378.86/974,322.63 = 543,722.01/x
  3. Step 3: Cross multiply
    707,378.86x = 974,322.63 × 543,722.01
  4. Step 4: Simplify right side
    707,378.86x = 529,760,658,772.09
  5. Step 5: Solve for x
    x = 529,760,658,772.09/707,378.86
  6. Step 6: Final answer
    x = 748,906.55

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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.