Home / 727,767.18-1,004,314.95-405,457.38

Finding the Fourth Proportional to 727,767.18, 1,004,314.95 and 405,457.38

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Solution

The fourth proportional to 727,767.18, 1,004,314.95 and 405,457.38 is: 559,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,767.18 : 1,004,314.95 = 405,457.38 : x
  2. Step 2: Convert to fraction form
    727,767.18/1,004,314.95 = 405,457.38/x
  3. Step 3: Cross multiply
    727,767.18x = 1,004,314.95 × 405,457.38
  4. Step 4: Simplify right side
    727,767.18x = 407,206,908,321.83
  5. Step 5: Solve for x
    x = 407,206,908,321.83/727,767.18
  6. Step 6: Final answer
    x = 559,529.09

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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.