Home / 346,743.20-520,114.80-326,007.20

Finding the Fourth Proportional to 346,743.20, 520,114.80 and 326,007.20

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Solution

The fourth proportional to 346,743.20, 520,114.80 and 326,007.20 is: 489,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,743.20 : 520,114.80 = 326,007.20 : x
  2. Step 2: Convert to fraction form
    346,743.20/520,114.80 = 326,007.20/x
  3. Step 3: Cross multiply
    346,743.20x = 520,114.80 × 326,007.20
  4. Step 4: Simplify right side
    346,743.20x = 169,561,169,626.56
  5. Step 5: Solve for x
    x = 169,561,169,626.56/346,743.20
  6. Step 6: Final answer
    x = 489,010.80

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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.