Home / 706,905.90-1,060,358.85-285,965.10

Finding the Fourth Proportional to 706,905.90, 1,060,358.85 and 285,965.10

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Solution

The fourth proportional to 706,905.90, 1,060,358.85 and 285,965.10 is: 428,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,905.90 : 1,060,358.85 = 285,965.10 : x
  2. Step 2: Convert to fraction form
    706,905.90/1,060,358.85 = 285,965.10/x
  3. Step 3: Cross multiply
    706,905.90x = 1,060,358.85 × 285,965.10
  4. Step 4: Simplify right side
    706,905.90x = 303,225,624,576.14
  5. Step 5: Solve for x
    x = 303,225,624,576.14/706,905.90
  6. Step 6: Final answer
    x = 428,947.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.