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Finding the Fourth Proportional to 722,880.53, 997,580.91 and 400,595.97

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Solution

The fourth proportional to 722,880.53, 997,580.91 and 400,595.97 is: 552,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,880.53 : 997,580.91 = 400,595.97 : x
  2. Step 2: Convert to fraction form
    722,880.53/997,580.91 = 400,595.97/x
  3. Step 3: Cross multiply
    722,880.53x = 997,580.91 × 400,595.97
  4. Step 4: Simplify right side
    722,880.53x = 399,626,892,294.93
  5. Step 5: Solve for x
    x = 399,626,892,294.93/722,880.53
  6. Step 6: Final answer
    x = 552,825.64

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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.