Home / 745,388.69-1,116,672.41-440,870.81

Finding the Fourth Proportional to 745,388.69, 1,116,672.41 and 440,870.81

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Solution

The fourth proportional to 745,388.69, 1,116,672.41 and 440,870.81 is: 660,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,388.69 : 1,116,672.41 = 440,870.81 : x
  2. Step 2: Convert to fraction form
    745,388.69/1,116,672.41 = 440,870.81/x
  3. Step 3: Cross multiply
    745,388.69x = 1,116,672.41 × 440,870.81
  4. Step 4: Simplify right side
    745,388.69x = 492,308,262,113.64
  5. Step 5: Solve for x
    x = 492,308,262,113.64/745,388.69
  6. Step 6: Final answer
    x = 660,471.87

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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.