Home / 745,681.50-1,028,301.66-459,145.80

Finding the Fourth Proportional to 745,681.50, 1,028,301.66 and 459,145.80

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Solution

The fourth proportional to 745,681.50, 1,028,301.66 and 459,145.80 is: 633,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,681.50 : 1,028,301.66 = 459,145.80 : x
  2. Step 2: Convert to fraction form
    745,681.50/1,028,301.66 = 459,145.80/x
  3. Step 3: Cross multiply
    745,681.50x = 1,028,301.66 × 459,145.80
  4. Step 4: Simplify right side
    745,681.50x = 472,140,388,322.03
  5. Step 5: Solve for x
    x = 472,140,388,322.03/745,681.50
  6. Step 6: Final answer
    x = 633,166.29

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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.