Home / 738,769.19-1,019,457.54-428,647.83

Finding the Fourth Proportional to 738,769.19, 1,019,457.54 and 428,647.83

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Solution

The fourth proportional to 738,769.19, 1,019,457.54 and 428,647.83 is: 591,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,769.19 : 1,019,457.54 = 428,647.83 : x
  2. Step 2: Convert to fraction form
    738,769.19/1,019,457.54 = 428,647.83/x
  3. Step 3: Cross multiply
    738,769.19x = 1,019,457.54 × 428,647.83
  4. Step 4: Simplify right side
    738,769.19x = 436,988,262,298.14
  5. Step 5: Solve for x
    x = 436,988,262,298.14/738,769.19
  6. Step 6: Final answer
    x = 591,508.51

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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.