Home / 722,905.24-997,649.18-400,608.60

Finding the Fourth Proportional to 722,905.24, 997,649.18 and 400,608.60

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Solution

The fourth proportional to 722,905.24, 997,649.18 and 400,608.60 is: 552,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,905.24 : 997,649.18 = 400,608.60 : x
  2. Step 2: Convert to fraction form
    722,905.24/997,649.18 = 400,608.60/x
  3. Step 3: Cross multiply
    722,905.24x = 997,649.18 × 400,608.60
  4. Step 4: Simplify right side
    722,905.24x = 399,666,841,290.95
  5. Step 5: Solve for x
    x = 399,666,841,290.95/722,905.24
  6. Step 6: Final answer
    x = 552,862.01

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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.