Home / 899,995.80-1,349,993.70-520,915.80

Finding the Fourth Proportional to 899,995.80, 1,349,993.70 and 520,915.80

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Solution

The fourth proportional to 899,995.80, 1,349,993.70 and 520,915.80 is: 781,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,995.80 : 1,349,993.70 = 520,915.80 : x
  2. Step 2: Convert to fraction form
    899,995.80/1,349,993.70 = 520,915.80/x
  3. Step 3: Cross multiply
    899,995.80x = 1,349,993.70 × 520,915.80
  4. Step 4: Simplify right side
    899,995.80x = 703,233,048,230.46
  5. Step 5: Solve for x
    x = 703,233,048,230.46/899,995.80
  6. Step 6: Final answer
    x = 781,373.70

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Similar ratio
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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.