Home / 917,237.96-1,265,745.78-509,365.65

Finding the Fourth Proportional to 917,237.96, 1,265,745.78 and 509,365.65

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Solution

The fourth proportional to 917,237.96, 1,265,745.78 and 509,365.65 is: 702,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,237.96 : 1,265,745.78 = 509,365.65 : x
  2. Step 2: Convert to fraction form
    917,237.96/1,265,745.78 = 509,365.65/x
  3. Step 3: Cross multiply
    917,237.96x = 1,265,745.78 × 509,365.65
  4. Step 4: Simplify right side
    917,237.96x = 644,727,421,964.46
  5. Step 5: Solve for x
    x = 644,727,421,964.46/917,237.96
  6. Step 6: Final answer
    x = 702,900.94

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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.