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Finding the Fourth Proportional to 706,441.42, 974,859.48 and 400,538.38

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Solution

The fourth proportional to 706,441.42, 974,859.48 and 400,538.38 is: 552,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,441.42 : 974,859.48 = 400,538.38 : x
  2. Step 2: Convert to fraction form
    706,441.42/974,859.48 = 400,538.38/x
  3. Step 3: Cross multiply
    706,441.42x = 974,859.48 × 400,538.38
  4. Step 4: Simplify right side
    706,441.42x = 390,468,636,846.84
  5. Step 5: Solve for x
    x = 390,468,636,846.84/706,441.42
  6. Step 6: Final answer
    x = 552,726.14

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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.