Home / 939,880.80-1,297,030.86-510,157.44

Finding the Fourth Proportional to 939,880.80, 1,297,030.86 and 510,157.44

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Solution

The fourth proportional to 939,880.80, 1,297,030.86 and 510,157.44 is: 704,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,880.80 : 1,297,030.86 = 510,157.44 : x
  2. Step 2: Convert to fraction form
    939,880.80/1,297,030.86 = 510,157.44/x
  3. Step 3: Cross multiply
    939,880.80x = 1,297,030.86 × 510,157.44
  4. Step 4: Simplify right side
    939,880.80x = 661,689,943,138.60
  5. Step 5: Solve for x
    x = 661,689,943,138.60/939,880.80
  6. Step 6: Final answer
    x = 704,014.75

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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.