Home / 695,363.20-1,041,835.20-320,617.60

Finding the Fourth Proportional to 695,363.20, 1,041,835.20 and 320,617.60

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Solution

The fourth proportional to 695,363.20, 1,041,835.20 and 320,617.60 is: 480,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,363.20 : 1,041,835.20 = 320,617.60 : x
  2. Step 2: Convert to fraction form
    695,363.20/1,041,835.20 = 320,617.60/x
  3. Step 3: Cross multiply
    695,363.20x = 1,041,835.20 × 320,617.60
  4. Step 4: Simplify right side
    695,363.20x = 334,030,701,419.52
  5. Step 5: Solve for x
    x = 334,030,701,419.52/695,363.20
  6. Step 6: Final answer
    x = 480,368.68

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1.5x scale

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.