Home / 722,869.36-997,565.60-400,584.80

Finding the Fourth Proportional to 722,869.36, 997,565.60 and 400,584.80

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Solution

The fourth proportional to 722,869.36, 997,565.60 and 400,584.80 is: 552,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,869.36 : 997,565.60 = 400,584.80 : x
  2. Step 2: Convert to fraction form
    722,869.36/997,565.60 = 400,584.80/x
  3. Step 3: Cross multiply
    722,869.36x = 997,565.60 × 400,584.80
  4. Step 4: Simplify right side
    722,869.36x = 399,609,616,362.88
  5. Step 5: Solve for x
    x = 399,609,616,362.88/722,869.36
  6. Step 6: Final answer
    x = 552,810.28

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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.