Home / 723,406.56-998,313.03-401,130.24

Finding the Fourth Proportional to 723,406.56, 998,313.03 and 401,130.24

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Solution

The fourth proportional to 723,406.56, 998,313.03 and 401,130.24 is: 553,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,406.56 : 998,313.03 = 401,130.24 : x
  2. Step 2: Convert to fraction form
    723,406.56/998,313.03 = 401,130.24/x
  3. Step 3: Cross multiply
    723,406.56x = 998,313.03 × 401,130.24
  4. Step 4: Simplify right side
    723,406.56x = 400,453,545,319.03
  5. Step 5: Solve for x
    x = 400,453,545,319.03/723,406.56
  6. Step 6: Final answer
    x = 553,566.37

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Double scale
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Similar ratio
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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.