Home / 915,322.02-1,263,140.89-512,914.02

Finding the Fourth Proportional to 915,322.02, 1,263,140.89 and 512,914.02

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Solution

The fourth proportional to 915,322.02, 1,263,140.89 and 512,914.02 is: 707,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,322.02 : 1,263,140.89 = 512,914.02 : x
  2. Step 2: Convert to fraction form
    915,322.02/1,263,140.89 = 512,914.02/x
  3. Step 3: Cross multiply
    915,322.02x = 1,263,140.89 × 512,914.02
  4. Step 4: Simplify right side
    915,322.02x = 647,882,671,716.28
  5. Step 5: Solve for x
    x = 647,882,671,716.28/915,322.02
  6. Step 6: Final answer
    x = 707,819.39

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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.