Home / 917,423.82-1,266,074.37-509,530.53

Finding the Fourth Proportional to 917,423.82, 1,266,074.37 and 509,530.53

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Solution

The fourth proportional to 917,423.82, 1,266,074.37 and 509,530.53 is: 703,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,423.82 : 1,266,074.37 = 509,530.53 : x
  2. Step 2: Convert to fraction form
    917,423.82/1,266,074.37 = 509,530.53/x
  3. Step 3: Cross multiply
    917,423.82x = 1,266,074.37 × 509,530.53
  4. Step 4: Simplify right side
    917,423.82x = 645,103,544,765.52
  5. Step 5: Solve for x
    x = 645,103,544,765.52/917,423.82
  6. Step 6: Final answer
    x = 703,168.51

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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.