Home / 722,477.21-997,051.37-400,187.26

Finding the Fourth Proportional to 722,477.21, 997,051.37 and 400,187.26

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Solution

The fourth proportional to 722,477.21, 997,051.37 and 400,187.26 is: 552,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,477.21 : 997,051.37 = 400,187.26 : x
  2. Step 2: Convert to fraction form
    722,477.21/997,051.37 = 400,187.26/x
  3. Step 3: Cross multiply
    722,477.21x = 997,051.37 × 400,187.26
  4. Step 4: Simplify right side
    722,477.21x = 399,007,255,084.92
  5. Step 5: Solve for x
    x = 399,007,255,084.92/722,477.21
  6. Step 6: Final answer
    x = 552,276.60

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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.