Home / 722,975.41-997,706.16-400,706.32

Finding the Fourth Proportional to 722,975.41, 997,706.16 and 400,706.32

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Solution

The fourth proportional to 722,975.41, 997,706.16 and 400,706.32 is: 552,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,975.41 : 997,706.16 = 400,706.32 : x
  2. Step 2: Convert to fraction form
    722,975.41/997,706.16 = 400,706.32/x
  3. Step 3: Cross multiply
    722,975.41x = 997,706.16 × 400,706.32
  4. Step 4: Simplify right side
    722,975.41x = 399,787,160,329.05
  5. Step 5: Solve for x
    x = 399,787,160,329.05/722,975.41
  6. Step 6: Final answer
    x = 552,974.77

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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.