Home / 820,000.64-1,131,599.04-462,302.08

Finding the Fourth Proportional to 820,000.64, 1,131,599.04 and 462,302.08

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Solution

The fourth proportional to 820,000.64, 1,131,599.04 and 462,302.08 is: 637,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,000.64 : 1,131,599.04 = 462,302.08 : x
  2. Step 2: Convert to fraction form
    820,000.64/1,131,599.04 = 462,302.08/x
  3. Step 3: Cross multiply
    820,000.64x = 1,131,599.04 × 462,302.08
  4. Step 4: Simplify right side
    820,000.64x = 523,140,589,918.00
  5. Step 5: Solve for x
    x = 523,140,589,918.00/820,000.64
  6. Step 6: Final answer
    x = 637,975.83

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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.