Home / 722,943.90-997,603.83-400,667.58

Finding the Fourth Proportional to 722,943.90, 997,603.83 and 400,667.58

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Solution

The fourth proportional to 722,943.90, 997,603.83 and 400,667.58 is: 552,888.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,943.90 : 997,603.83 = 400,667.58 : x
  2. Step 2: Convert to fraction form
    722,943.90/997,603.83 = 400,667.58/x
  3. Step 3: Cross multiply
    722,943.90x = 997,603.83 × 400,667.58
  4. Step 4: Simplify right side
    722,943.90x = 399,707,512,364.83
  5. Step 5: Solve for x
    x = 399,707,512,364.83/722,943.90
  6. Step 6: Final answer
    x = 552,888.70

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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.