Home / 722,944.90-997,605.21-400,668.58

Finding the Fourth Proportional to 722,944.90, 997,605.21 and 400,668.58

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Solution

The fourth proportional to 722,944.90, 997,605.21 and 400,668.58 is: 552,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,944.90 : 997,605.21 = 400,668.58 : x
  2. Step 2: Convert to fraction form
    722,944.90/997,605.21 = 400,668.58/x
  3. Step 3: Cross multiply
    722,944.90x = 997,605.21 × 400,668.58
  4. Step 4: Simplify right side
    722,944.90x = 399,709,062,891.30
  5. Step 5: Solve for x
    x = 399,709,062,891.30/722,944.90
  6. Step 6: Final answer
    x = 552,890.08

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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.