Home / 929,559.45-1,393,890.38-389,670.71

Finding the Fourth Proportional to 929,559.45, 1,393,890.38 and 389,670.71

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Solution

The fourth proportional to 929,559.45, 1,393,890.38 and 389,670.71 is: 584,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,559.45 : 1,393,890.38 = 389,670.71 : x
  2. Step 2: Convert to fraction form
    929,559.45/1,393,890.38 = 389,670.71/x
  3. Step 3: Cross multiply
    929,559.45x = 1,393,890.38 × 389,670.71
  4. Step 4: Simplify right side
    929,559.45x = 543,158,258,024.96
  5. Step 5: Solve for x
    x = 543,158,258,024.96/929,559.45
  6. Step 6: Final answer
    x = 584,317.94

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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.