Home / 745,077.55-1,028,178.45-422,768.41

Finding the Fourth Proportional to 745,077.55, 1,028,178.45 and 422,768.41

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Solution

The fourth proportional to 745,077.55, 1,028,178.45 and 422,768.41 is: 583,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,077.55 : 1,028,178.45 = 422,768.41 : x
  2. Step 2: Convert to fraction form
    745,077.55/1,028,178.45 = 422,768.41/x
  3. Step 3: Cross multiply
    745,077.55x = 1,028,178.45 × 422,768.41
  4. Step 4: Simplify right side
    745,077.55x = 434,681,368,502.76
  5. Step 5: Solve for x
    x = 434,681,368,502.76/745,077.55
  6. Step 6: Final answer
    x = 583,404.20

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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.