Home / 745,073.54-1,028,172.94-422,764.41

Finding the Fourth Proportional to 745,073.54, 1,028,172.94 and 422,764.41

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Solution

The fourth proportional to 745,073.54, 1,028,172.94 and 422,764.41 is: 583,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,073.54 : 1,028,172.94 = 422,764.41 : x
  2. Step 2: Convert to fraction form
    745,073.54/1,028,172.94 = 422,764.41/x
  3. Step 3: Cross multiply
    745,073.54x = 1,028,172.94 × 422,764.41
  4. Step 4: Simplify right side
    745,073.54x = 434,674,931,533.85
  5. Step 5: Solve for x
    x = 434,674,931,533.85/745,073.54
  6. Step 6: Final answer
    x = 583,398.70

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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.