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Finding the Fourth Proportional to 706,344.42, 974,728.45 and 384,054.78

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Solution

The fourth proportional to 706,344.42, 974,728.45 and 384,054.78 is: 529,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,344.42 : 974,728.45 = 384,054.78 : x
  2. Step 2: Convert to fraction form
    706,344.42/974,728.45 = 384,054.78/x
  3. Step 3: Cross multiply
    706,344.42x = 974,728.45 × 384,054.78
  4. Step 4: Simplify right side
    706,344.42x = 374,349,120,424.49
  5. Step 5: Solve for x
    x = 374,349,120,424.49/706,344.42
  6. Step 6: Final answer
    x = 529,981.00

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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.