Home / 535,389.66-738,899.46-320,529.60

Finding the Fourth Proportional to 535,389.66, 738,899.46 and 320,529.60

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Solution

The fourth proportional to 535,389.66, 738,899.46 and 320,529.60 is: 442,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,389.66 : 738,899.46 = 320,529.60 : x
  2. Step 2: Convert to fraction form
    535,389.66/738,899.46 = 320,529.60/x
  3. Step 3: Cross multiply
    535,389.66x = 738,899.46 × 320,529.60
  4. Step 4: Simplify right side
    535,389.66x = 236,839,148,354.02
  5. Step 5: Solve for x
    x = 236,839,148,354.02/535,389.66
  6. Step 6: Final answer
    x = 442,367.80

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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.