Home / 745,093.51-1,028,200.50-422,784.38

Finding the Fourth Proportional to 745,093.51, 1,028,200.50 and 422,784.38

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Solution

The fourth proportional to 745,093.51, 1,028,200.50 and 422,784.38 is: 583,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,093.51 : 1,028,200.50 = 422,784.38 : x
  2. Step 2: Convert to fraction form
    745,093.51/1,028,200.50 = 422,784.38/x
  3. Step 3: Cross multiply
    745,093.51x = 1,028,200.50 × 422,784.38
  4. Step 4: Simplify right side
    745,093.51x = 434,707,113,478.69
  5. Step 5: Solve for x
    x = 434,707,113,478.69/745,093.51
  6. Step 6: Final answer
    x = 583,426.25

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Double scale
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Similar ratio
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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.