Home / 682,430.40-1,023,645.60-346,507.20

Finding the Fourth Proportional to 682,430.40, 1,023,645.60 and 346,507.20

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Solution

The fourth proportional to 682,430.40, 1,023,645.60 and 346,507.20 is: 519,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,430.40 : 1,023,645.60 = 346,507.20 : x
  2. Step 2: Convert to fraction form
    682,430.40/1,023,645.60 = 346,507.20/x
  3. Step 3: Cross multiply
    682,430.40x = 1,023,645.60 × 346,507.20
  4. Step 4: Simplify right side
    682,430.40x = 354,700,570,648.32
  5. Step 5: Solve for x
    x = 354,700,570,648.32/682,430.40
  6. Step 6: Final answer
    x = 519,760.80

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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.