Home / 727,612.89-1,004,136.06-405,322.92

Finding the Fourth Proportional to 727,612.89, 1,004,136.06 and 405,322.92

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Solution

The fourth proportional to 727,612.89, 1,004,136.06 and 405,322.92 is: 559,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,612.89 : 1,004,136.06 = 405,322.92 : x
  2. Step 2: Convert to fraction form
    727,612.89/1,004,136.06 = 405,322.92/x
  3. Step 3: Cross multiply
    727,612.89x = 1,004,136.06 × 405,322.92
  4. Step 4: Simplify right side
    727,612.89x = 406,999,359,916.50
  5. Step 5: Solve for x
    x = 406,999,359,916.50/727,612.89
  6. Step 6: Final answer
    x = 559,362.49

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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.