Home / 722,972.71-997,702.32-400,731.22

Finding the Fourth Proportional to 722,972.71, 997,702.32 and 400,731.22

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Solution

The fourth proportional to 722,972.71, 997,702.32 and 400,731.22 is: 553,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,972.71 : 997,702.32 = 400,731.22 : x
  2. Step 2: Convert to fraction form
    722,972.71/997,702.32 = 400,731.22/x
  3. Step 3: Cross multiply
    722,972.71x = 997,702.32 × 400,731.22
  4. Step 4: Simplify right side
    722,972.71x = 399,810,467,890.43
  5. Step 5: Solve for x
    x = 399,810,467,890.43/722,972.71
  6. Step 6: Final answer
    x = 553,009.07

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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.