Home / 722,971.24-997,700.22-400,729.72

Finding the Fourth Proportional to 722,971.24, 997,700.22 and 400,729.72

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Solution

The fourth proportional to 722,971.24, 997,700.22 and 400,729.72 is: 553,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,971.24 : 997,700.22 = 400,729.72 : x
  2. Step 2: Convert to fraction form
    722,971.24/997,700.22 = 400,729.72/x
  3. Step 3: Cross multiply
    722,971.24x = 997,700.22 × 400,729.72
  4. Step 4: Simplify right side
    722,971.24x = 399,808,129,804.54
  5. Step 5: Solve for x
    x = 399,808,129,804.54/722,971.24
  6. Step 6: Final answer
    x = 553,006.96

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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.