Home / 722,984.10-997,718.13-400,714.98

Finding the Fourth Proportional to 722,984.10, 997,718.13 and 400,714.98

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Solution

The fourth proportional to 722,984.10, 997,718.13 and 400,714.98 is: 552,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,984.10 : 997,718.13 = 400,714.98 : x
  2. Step 2: Convert to fraction form
    722,984.10/997,718.13 = 400,714.98/x
  3. Step 3: Cross multiply
    722,984.10x = 997,718.13 × 400,714.98
  4. Step 4: Simplify right side
    722,984.10x = 399,800,600,508.59
  5. Step 5: Solve for x
    x = 399,800,600,508.59/722,984.10
  6. Step 6: Final answer
    x = 552,986.71

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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.