Home / 722,945.90-997,606.59-400,669.58

Finding the Fourth Proportional to 722,945.90, 997,606.59 and 400,669.58

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Solution

The fourth proportional to 722,945.90, 997,606.59 and 400,669.58 is: 552,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,945.90 : 997,606.59 = 400,669.58 : x
  2. Step 2: Convert to fraction form
    722,945.90/997,606.59 = 400,669.58/x
  3. Step 3: Cross multiply
    722,945.90x = 997,606.59 × 400,669.58
  4. Step 4: Simplify right side
    722,945.90x = 399,710,613,420.53
  5. Step 5: Solve for x
    x = 399,710,613,420.53/722,945.90
  6. Step 6: Final answer
    x = 552,891.46

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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.