Home / 745,697.25-1,116,461.75-402,912.81

Finding the Fourth Proportional to 745,697.25, 1,116,461.75 and 402,912.81

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Solution

The fourth proportional to 745,697.25, 1,116,461.75 and 402,912.81 is: 603,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,697.25 : 1,116,461.75 = 402,912.81 : x
  2. Step 2: Convert to fraction form
    745,697.25/1,116,461.75 = 402,912.81/x
  3. Step 3: Cross multiply
    745,697.25x = 1,116,461.75 × 402,912.81
  4. Step 4: Simplify right side
    745,697.25x = 449,836,738,935.45
  5. Step 5: Solve for x
    x = 449,836,738,935.45/745,697.25
  6. Step 6: Final answer
    x = 603,243.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.