Home / 820,189.02-1,131,861.96-480,657

Finding the Fourth Proportional to 820,189.02, 1,131,861.96 and 480,657

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Solution

The fourth proportional to 820,189.02, 1,131,861.96 and 480,657 is: 663,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,189.02 : 1,131,861.96 = 480,657 : x
  2. Step 2: Convert to fraction form
    820,189.02/1,131,861.96 = 480,657/x
  3. Step 3: Cross multiply
    820,189.02x = 1,131,861.96 × 480,657
  4. Step 4: Simplify right side
    820,189.02x = 544,037,374,107.72
  5. Step 5: Solve for x
    x = 544,037,374,107.72/820,189.02
  6. Step 6: Final answer
    x = 663,307.31

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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.