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Finding the Fourth Proportional to 660,663.96, 911,791.89 and 370,353.93

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Solution

The fourth proportional to 660,663.96, 911,791.89 and 370,353.93 is: 511,130.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,663.96 : 911,791.89 = 370,353.93 : x
  2. Step 2: Convert to fraction form
    660,663.96/911,791.89 = 370,353.93/x
  3. Step 3: Cross multiply
    660,663.96x = 911,791.89 × 370,353.93
  4. Step 4: Simplify right side
    660,663.96x = 337,685,710,729.51
  5. Step 5: Solve for x
    x = 337,685,710,729.51/660,663.96
  6. Step 6: Final answer
    x = 511,130.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.