Home / 840,439.84-1,159,861.78-477,897.43

Finding the Fourth Proportional to 840,439.84, 1,159,861.78 and 477,897.43

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Solution

The fourth proportional to 840,439.84, 1,159,861.78 and 477,897.43 is: 659,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,439.84 : 1,159,861.78 = 477,897.43 : x
  2. Step 2: Convert to fraction form
    840,439.84/1,159,861.78 = 477,897.43/x
  3. Step 3: Cross multiply
    840,439.84x = 1,159,861.78 × 477,897.43
  4. Step 4: Simplify right side
    840,439.84x = 554,294,965,320.74
  5. Step 5: Solve for x
    x = 554,294,965,320.74/840,439.84
  6. Step 6: Final answer
    x = 659,529.62

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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.