Home / 687,368.54-1,030,748.32-367,442.90

Finding the Fourth Proportional to 687,368.54, 1,030,748.32 and 367,442.90

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Solution

The fourth proportional to 687,368.54, 1,030,748.32 and 367,442.90 is: 551,001.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,368.54 : 1,030,748.32 = 367,442.90 : x
  2. Step 2: Convert to fraction form
    687,368.54/1,030,748.32 = 367,442.90/x
  3. Step 3: Cross multiply
    687,368.54x = 1,030,748.32 × 367,442.90
  4. Step 4: Simplify right side
    687,368.54x = 378,741,151,870.93
  5. Step 5: Solve for x
    x = 378,741,151,870.93/687,368.54
  6. Step 6: Final answer
    x = 551,001.58

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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.