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Finding the Fourth Proportional to 545,230.32, 752,365.08 and 402,067.44

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Solution

The fourth proportional to 545,230.32, 752,365.08 and 402,067.44 is: 554,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,230.32 : 752,365.08 = 402,067.44 : x
  2. Step 2: Convert to fraction form
    545,230.32/752,365.08 = 402,067.44/x
  3. Step 3: Cross multiply
    545,230.32x = 752,365.08 × 402,067.44
  4. Step 4: Simplify right side
    545,230.32x = 302,501,501,661.00
  5. Step 5: Solve for x
    x = 302,501,501,661.00/545,230.32
  6. Step 6: Final answer
    x = 554,814.16

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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.