Home / 929,379.96-1,282,491.18-515,895.48

Finding the Fourth Proportional to 929,379.96, 1,282,491.18 and 515,895.48

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Solution

The fourth proportional to 929,379.96, 1,282,491.18 and 515,895.48 is: 711,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,379.96 : 1,282,491.18 = 515,895.48 : x
  2. Step 2: Convert to fraction form
    929,379.96/1,282,491.18 = 515,895.48/x
  3. Step 3: Cross multiply
    929,379.96x = 1,282,491.18 × 515,895.48
  4. Step 4: Simplify right side
    929,379.96x = 661,631,402,901.87
  5. Step 5: Solve for x
    x = 661,631,402,901.87/929,379.96
  6. Step 6: Final answer
    x = 711,906.25

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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.