Home / 890,048.70-1,336,057.20-553,469.40

Finding the Fourth Proportional to 890,048.70, 1,336,057.20 and 553,469.40

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Solution

The fourth proportional to 890,048.70, 1,336,057.20 and 553,469.40 is: 830,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,048.70 : 1,336,057.20 = 553,469.40 : x
  2. Step 2: Convert to fraction form
    890,048.70/1,336,057.20 = 553,469.40/x
  3. Step 3: Cross multiply
    890,048.70x = 1,336,057.20 × 553,469.40
  4. Step 4: Simplify right side
    890,048.70x = 739,466,776,849.68
  5. Step 5: Solve for x
    x = 739,466,776,849.68/890,048.70
  6. Step 6: Final answer
    x = 830,816.09

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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.