Home / 745,782.81-1,029,131.78-439,789.01

Finding the Fourth Proportional to 745,782.81, 1,029,131.78 and 439,789.01

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Solution

The fourth proportional to 745,782.81, 1,029,131.78 and 439,789.01 is: 606,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,782.81 : 1,029,131.78 = 439,789.01 : x
  2. Step 2: Convert to fraction form
    745,782.81/1,029,131.78 = 439,789.01/x
  3. Step 3: Cross multiply
    745,782.81x = 1,029,131.78 × 439,789.01
  4. Step 4: Simplify right side
    745,782.81x = 452,600,839,341.13
  5. Step 5: Solve for x
    x = 452,600,839,341.13/745,782.81
  6. Step 6: Final answer
    x = 606,880.22

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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.