Home / 723,077.36-997,906.48-400,888.56

Finding the Fourth Proportional to 723,077.36, 997,906.48 and 400,888.56

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Solution

The fourth proportional to 723,077.36, 997,906.48 and 400,888.56 is: 553,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,077.36 : 997,906.48 = 400,888.56 : x
  2. Step 2: Convert to fraction form
    723,077.36/997,906.48 = 400,888.56/x
  3. Step 3: Cross multiply
    723,077.36x = 997,906.48 × 400,888.56
  4. Step 4: Simplify right side
    723,077.36x = 400,049,291,781.87
  5. Step 5: Solve for x
    x = 400,049,291,781.87/723,077.36
  6. Step 6: Final answer
    x = 553,259.32

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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.