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Finding the Fourth Proportional to 571,625.56, 788,831.22 and 316,971.28

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Solution

The fourth proportional to 571,625.56, 788,831.22 and 316,971.28 is: 437,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,625.56 : 788,831.22 = 316,971.28 : x
  2. Step 2: Convert to fraction form
    571,625.56/788,831.22 = 316,971.28/x
  3. Step 3: Cross multiply
    571,625.56x = 788,831.22 × 316,971.28
  4. Step 4: Simplify right side
    571,625.56x = 250,036,841,507.36
  5. Step 5: Solve for x
    x = 250,036,841,507.36/571,625.56
  6. Step 6: Final answer
    x = 437,413.68

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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.