Home / 723,186.48-998,045.19-400,910.16

Finding the Fourth Proportional to 723,186.48, 998,045.19 and 400,910.16

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Solution

The fourth proportional to 723,186.48, 998,045.19 and 400,910.16 is: 553,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,186.48 : 998,045.19 = 400,910.16 : x
  2. Step 2: Convert to fraction form
    723,186.48/998,045.19 = 400,910.16/x
  3. Step 3: Cross multiply
    723,186.48x = 998,045.19 × 400,910.16
  4. Step 4: Simplify right side
    723,186.48x = 400,126,456,810.13
  5. Step 5: Solve for x
    x = 400,126,456,810.13/723,186.48
  6. Step 6: Final answer
    x = 553,282.55

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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.