Home / 767,964-1,152,460.20-318,685.30

Finding the Fourth Proportional to 767,964, 1,152,460.20 and 318,685.30

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Solution

The fourth proportional to 767,964, 1,152,460.20 and 318,685.30 is: 478,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,964 : 1,152,460.20 = 318,685.30 : x
  2. Step 2: Convert to fraction form
    767,964/1,152,460.20 = 318,685.30/x
  3. Step 3: Cross multiply
    767,964x = 1,152,460.20 × 318,685.30
  4. Step 4: Simplify right side
    767,964x = 367,272,117,219.33
  5. Step 5: Solve for x
    x = 367,272,117,219.33/767,964
  6. Step 6: Final answer
    x = 478,241.32

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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.