Home / 864,001.60-1,295,080.80-331,316.80

Finding the Fourth Proportional to 864,001.60, 1,295,080.80 and 331,316.80

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Solution

The fourth proportional to 864,001.60, 1,295,080.80 and 331,316.80 is: 496,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,001.60 : 1,295,080.80 = 331,316.80 : x
  2. Step 2: Convert to fraction form
    864,001.60/1,295,080.80 = 331,316.80/x
  3. Step 3: Cross multiply
    864,001.60x = 1,295,080.80 × 331,316.80
  4. Step 4: Simplify right side
    864,001.60x = 429,082,026,397.44
  5. Step 5: Solve for x
    x = 429,082,026,397.44/864,001.60
  6. Step 6: Final answer
    x = 496,621.80

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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.