Home / 723,187.48-998,046.57-400,911.16

Finding the Fourth Proportional to 723,187.48, 998,046.57 and 400,911.16

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Solution

The fourth proportional to 723,187.48, 998,046.57 and 400,911.16 is: 553,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,187.48 : 998,046.57 = 400,911.16 : x
  2. Step 2: Convert to fraction form
    723,187.48/998,046.57 = 400,911.16/x
  3. Step 3: Cross multiply
    723,187.48x = 998,046.57 × 400,911.16
  4. Step 4: Simplify right side
    723,187.48x = 400,128,008,112.72
  5. Step 5: Solve for x
    x = 400,128,008,112.72/723,187.48
  6. Step 6: Final answer
    x = 553,283.93

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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.