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Finding the Fourth Proportional to 706,428.96, 974,842.32 and 400,525.92

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Solution

The fourth proportional to 706,428.96, 974,842.32 and 400,525.92 is: 552,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,428.96 : 974,842.32 = 400,525.92 : x
  2. Step 2: Convert to fraction form
    706,428.96/974,842.32 = 400,525.92/x
  3. Step 3: Cross multiply
    706,428.96x = 974,842.32 × 400,525.92
  4. Step 4: Simplify right side
    706,428.96x = 390,449,617,072.93
  5. Step 5: Solve for x
    x = 390,449,617,072.93/706,428.96
  6. Step 6: Final answer
    x = 552,708.96

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1.5x scale

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.