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Finding the Fourth Proportional to 706,912.84, 975,604.53 and 401,088.70

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Solution

The fourth proportional to 706,912.84, 975,604.53 and 401,088.70 is: 553,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,912.84 : 975,604.53 = 401,088.70 : x
  2. Step 2: Convert to fraction form
    706,912.84/975,604.53 = 401,088.70/x
  3. Step 3: Cross multiply
    706,912.84x = 975,604.53 × 401,088.70
  4. Step 4: Simplify right side
    706,912.84x = 391,303,952,651.81
  5. Step 5: Solve for x
    x = 391,303,952,651.81/706,912.84
  6. Step 6: Final answer
    x = 553,539.18

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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.