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Finding the Fourth Proportional to 404,642.36, 558,447.42 and 347,470.93

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Solution

The fourth proportional to 404,642.36, 558,447.42 and 347,470.93 is: 479,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,642.36 : 558,447.42 = 347,470.93 : x
  2. Step 2: Convert to fraction form
    404,642.36/558,447.42 = 347,470.93/x
  3. Step 3: Cross multiply
    404,642.36x = 558,447.42 × 347,470.93
  4. Step 4: Simplify right side
    404,642.36x = 194,044,243,535.68
  5. Step 5: Solve for x
    x = 194,044,243,535.68/404,642.36
  6. Step 6: Final answer
    x = 479,545.06

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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.