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Finding the Fourth Proportional to 722,543.82, 997,097.42 and 400,252.92

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Solution

The fourth proportional to 722,543.82, 997,097.42 and 400,252.92 is: 552,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,543.82 : 997,097.42 = 400,252.92 : x
  2. Step 2: Convert to fraction form
    722,543.82/997,097.42 = 400,252.92/x
  3. Step 3: Cross multiply
    722,543.82x = 997,097.42 × 400,252.92
  4. Step 4: Simplify right side
    722,543.82x = 399,091,151,878.20
  5. Step 5: Solve for x
    x = 399,091,151,878.20/722,543.82
  6. Step 6: Final answer
    x = 552,341.80

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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.