Home / 722,971.35-997,700.58-400,702.28

Finding the Fourth Proportional to 722,971.35, 997,700.58 and 400,702.28

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Solution

The fourth proportional to 722,971.35, 997,700.58 and 400,702.28 is: 552,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,971.35 : 997,700.58 = 400,702.28 : x
  2. Step 2: Convert to fraction form
    722,971.35/997,700.58 = 400,702.28/x
  3. Step 3: Cross multiply
    722,971.35x = 997,700.58 × 400,702.28
  4. Step 4: Simplify right side
    722,971.35x = 399,780,892,174.82
  5. Step 5: Solve for x
    x = 399,780,892,174.82/722,971.35
  6. Step 6: Final answer
    x = 552,969.20

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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.