Home / 917,072.99-1,265,600.25-509,174.85

Finding the Fourth Proportional to 917,072.99, 1,265,600.25 and 509,174.85

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Solution

The fourth proportional to 917,072.99, 1,265,600.25 and 509,174.85 is: 702,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.99 : 1,265,600.25 = 509,174.85 : x
  2. Step 2: Convert to fraction form
    917,072.99/1,265,600.25 = 509,174.85/x
  3. Step 3: Cross multiply
    917,072.99x = 1,265,600.25 × 509,174.85
  4. Step 4: Simplify right side
    917,072.99x = 644,411,817,453.71
  5. Step 5: Solve for x
    x = 644,411,817,453.71/917,072.99
  6. Step 6: Final answer
    x = 702,683.24

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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.