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Finding the Fourth Proportional to 610,950.51, 917,096.18 and 485,397.81

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Solution

The fourth proportional to 610,950.51, 917,096.18 and 485,397.81 is: 728,629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,950.51 : 917,096.18 = 485,397.81 : x
  2. Step 2: Convert to fraction form
    610,950.51/917,096.18 = 485,397.81/x
  3. Step 3: Cross multiply
    610,950.51x = 917,096.18 × 485,397.81
  4. Step 4: Simplify right side
    610,950.51x = 445,156,474,904.38
  5. Step 5: Solve for x
    x = 445,156,474,904.38/610,950.51
  6. Step 6: Final answer
    x = 728,629.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.