Home / 762,521.09-1,051,416.23-486,509.54

Finding the Fourth Proportional to 762,521.09, 1,051,416.23 and 486,509.54

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Solution

The fourth proportional to 762,521.09, 1,051,416.23 and 486,509.54 is: 670,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,521.09 : 1,051,416.23 = 486,509.54 : x
  2. Step 2: Convert to fraction form
    762,521.09/1,051,416.23 = 486,509.54/x
  3. Step 3: Cross multiply
    762,521.09x = 1,051,416.23 × 486,509.54
  4. Step 4: Simplify right side
    762,521.09x = 511,524,018,716.21
  5. Step 5: Solve for x
    x = 511,524,018,716.21/762,521.09
  6. Step 6: Final answer
    x = 670,832.62

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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.