Home / 745,921.90-1,029,336.42-423,589.42

Finding the Fourth Proportional to 745,921.90, 1,029,336.42 and 423,589.42

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Solution

The fourth proportional to 745,921.90, 1,029,336.42 and 423,589.42 is: 584,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,921.90 : 1,029,336.42 = 423,589.42 : x
  2. Step 2: Convert to fraction form
    745,921.90/1,029,336.42 = 423,589.42/x
  3. Step 3: Cross multiply
    745,921.90x = 1,029,336.42 × 423,589.42
  4. Step 4: Simplify right side
    745,921.90x = 436,016,017,132.68
  5. Step 5: Solve for x
    x = 436,016,017,132.68/745,921.90
  6. Step 6: Final answer
    x = 584,533.07

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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.