Home / 723,800.80-998,764.44-401,430.10

Finding the Fourth Proportional to 723,800.80, 998,764.44 and 401,430.10

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Solution

The fourth proportional to 723,800.80, 998,764.44 and 401,430.10 is: 553,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,800.80 : 998,764.44 = 401,430.10 : x
  2. Step 2: Convert to fraction form
    723,800.80/998,764.44 = 401,430.10/x
  3. Step 3: Cross multiply
    723,800.80x = 998,764.44 × 401,430.10
  4. Step 4: Simplify right side
    723,800.80x = 400,934,109,025.64
  5. Step 5: Solve for x
    x = 400,934,109,025.64/723,800.80
  6. Step 6: Final answer
    x = 553,928.80

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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.