Home / 528,028.60-790,293.30-486,038.20

Finding the Fourth Proportional to 528,028.60, 790,293.30 and 486,038.20

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Solution

The fourth proportional to 528,028.60, 790,293.30 and 486,038.20 is: 727,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,028.60 : 790,293.30 = 486,038.20 : x
  2. Step 2: Convert to fraction form
    528,028.60/790,293.30 = 486,038.20/x
  3. Step 3: Cross multiply
    528,028.60x = 790,293.30 × 486,038.20
  4. Step 4: Simplify right side
    528,028.60x = 384,112,733,004.06
  5. Step 5: Solve for x
    x = 384,112,733,004.06/528,028.60
  6. Step 6: Final answer
    x = 727,446.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.