Home / 745,161.48-1,028,433.56-439,140.02

Finding the Fourth Proportional to 745,161.48, 1,028,433.56 and 439,140.02

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Solution

The fourth proportional to 745,161.48, 1,028,433.56 and 439,140.02 is: 606,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,161.48 : 1,028,433.56 = 439,140.02 : x
  2. Step 2: Convert to fraction form
    745,161.48/1,028,433.56 = 439,140.02/x
  3. Step 3: Cross multiply
    745,161.48x = 1,028,433.56 × 439,140.02
  4. Step 4: Simplify right side
    745,161.48x = 451,626,326,769.20
  5. Step 5: Solve for x
    x = 451,626,326,769.20/745,161.48
  6. Step 6: Final answer
    x = 606,078.47

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1.5x scale

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.