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Finding the Fourth Proportional to 383,302.44, 528,668.10 and 360,700.20

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Solution

The fourth proportional to 383,302.44, 528,668.10 and 360,700.20 is: 497,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,302.44 : 528,668.10 = 360,700.20 : x
  2. Step 2: Convert to fraction form
    383,302.44/528,668.10 = 360,700.20/x
  3. Step 3: Cross multiply
    383,302.44x = 528,668.10 × 360,700.20
  4. Step 4: Simplify right side
    383,302.44x = 190,690,689,403.62
  5. Step 5: Solve for x
    x = 190,690,689,403.62/383,302.44
  6. Step 6: Final answer
    x = 497,494.07

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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.