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Finding the Fourth Proportional to 400,430.46, 552,712.23 and 230,784.06

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Solution

The fourth proportional to 400,430.46, 552,712.23 and 230,784.06 is: 318,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,430.46 : 552,712.23 = 230,784.06 : x
  2. Step 2: Convert to fraction form
    400,430.46/552,712.23 = 230,784.06/x
  3. Step 3: Cross multiply
    400,430.46x = 552,712.23 × 230,784.06
  4. Step 4: Simplify right side
    400,430.46x = 127,557,172,451.05
  5. Step 5: Solve for x
    x = 127,557,172,451.05/400,430.46
  6. Step 6: Final answer
    x = 318,550.12

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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.