Home / 917,671.83-1,266,351.87-509,799.30

Finding the Fourth Proportional to 917,671.83, 1,266,351.87 and 509,799.30

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Solution

The fourth proportional to 917,671.83, 1,266,351.87 and 509,799.30 is: 703,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,671.83 : 1,266,351.87 = 509,799.30 : x
  2. Step 2: Convert to fraction form
    917,671.83/1,266,351.87 = 509,799.30/x
  3. Step 3: Cross multiply
    917,671.83x = 1,266,351.87 × 509,799.30
  4. Step 4: Simplify right side
    917,671.83x = 645,585,296,879.69
  5. Step 5: Solve for x
    x = 645,585,296,879.69/917,671.83
  6. Step 6: Final answer
    x = 703,503.45

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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.