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Finding the Fourth Proportional to 706,429.53, 974,843.09 and 400,526.49

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Solution

The fourth proportional to 706,429.53, 974,843.09 and 400,526.49 is: 552,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,429.53 : 974,843.09 = 400,526.49 : x
  2. Step 2: Convert to fraction form
    706,429.53/974,843.09 = 400,526.49/x
  3. Step 3: Cross multiply
    706,429.53x = 974,843.09 × 400,526.49
  4. Step 4: Simplify right side
    706,429.53x = 390,450,484,293.46
  5. Step 5: Solve for x
    x = 390,450,484,293.46/706,429.53
  6. Step 6: Final answer
    x = 552,709.74

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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.