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Finding the Fourth Proportional to 706,428.41, 974,841.54 and 400,525.37

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Solution

The fourth proportional to 706,428.41, 974,841.54 and 400,525.37 is: 552,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,428.41 : 974,841.54 = 400,525.37 : x
  2. Step 2: Convert to fraction form
    706,428.41/974,841.54 = 400,525.37/x
  3. Step 3: Cross multiply
    706,428.41x = 974,841.54 × 400,525.37
  4. Step 4: Simplify right side
    706,428.41x = 390,448,764,164.08
  5. Step 5: Solve for x
    x = 390,448,764,164.08/706,428.41
  6. Step 6: Final answer
    x = 552,708.19

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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.