Home / 745,429.54-1,028,664.70-455,525.86

Finding the Fourth Proportional to 745,429.54, 1,028,664.70 and 455,525.86

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Solution

The fourth proportional to 745,429.54, 1,028,664.70 and 455,525.86 is: 628,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,429.54 : 1,028,664.70 = 455,525.86 : x
  2. Step 2: Convert to fraction form
    745,429.54/1,028,664.70 = 455,525.86/x
  3. Step 3: Cross multiply
    745,429.54x = 1,028,664.70 × 455,525.86
  4. Step 4: Simplify right side
    745,429.54x = 468,583,368,408.67
  5. Step 5: Solve for x
    x = 468,583,368,408.67/745,429.54
  6. Step 6: Final answer
    x = 628,608.53

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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.