Home / 917,072.93-1,265,600.16-509,174.79

Finding the Fourth Proportional to 917,072.93, 1,265,600.16 and 509,174.79

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Solution

The fourth proportional to 917,072.93, 1,265,600.16 and 509,174.79 is: 702,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.93 : 1,265,600.16 = 509,174.79 : x
  2. Step 2: Convert to fraction form
    917,072.93/1,265,600.16 = 509,174.79/x
  3. Step 3: Cross multiply
    917,072.93x = 1,265,600.16 × 509,174.79
  4. Step 4: Simplify right side
    917,072.93x = 644,411,690,636.90
  5. Step 5: Solve for x
    x = 644,411,690,636.90/917,072.93
  6. Step 6: Final answer
    x = 702,683.15

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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.