Home / 820,560.21-1,131,480.41-533,548.05

Finding the Fourth Proportional to 820,560.21, 1,131,480.41 and 533,548.05

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Solution

The fourth proportional to 820,560.21, 1,131,480.41 and 533,548.05 is: 735,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,560.21 : 1,131,480.41 = 533,548.05 : x
  2. Step 2: Convert to fraction form
    820,560.21/1,131,480.41 = 533,548.05/x
  3. Step 3: Cross multiply
    820,560.21x = 1,131,480.41 × 533,548.05
  4. Step 4: Simplify right side
    820,560.21x = 603,699,163,700.96
  5. Step 5: Solve for x
    x = 603,699,163,700.96/820,560.21
  6. Step 6: Final answer
    x = 735,715.86

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Double scale
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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.