Home / 628,713.86-942,328.13-268,779.42

Finding the Fourth Proportional to 628,713.86, 942,328.13 and 268,779.42

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Solution

The fourth proportional to 628,713.86, 942,328.13 and 268,779.42 is: 402,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,713.86 : 942,328.13 = 268,779.42 : x
  2. Step 2: Convert to fraction form
    628,713.86/942,328.13 = 268,779.42/x
  3. Step 3: Cross multiply
    628,713.86x = 942,328.13 × 268,779.42
  4. Step 4: Simplify right side
    628,713.86x = 253,278,406,887.19
  5. Step 5: Solve for x
    x = 253,278,406,887.19/628,713.86
  6. Step 6: Final answer
    x = 402,851.64

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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.