Home / 1,189,362.58-1,783,644.01-431,045.31

Finding the Fourth Proportional to 1,189,362.58, 1,783,644.01 and 431,045.31

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Solution

The fourth proportional to 1,189,362.58, 1,783,644.01 and 431,045.31 is: 646,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,362.58 : 1,783,644.01 = 431,045.31 : x
  2. Step 2: Convert to fraction form
    1,189,362.58/1,783,644.01 = 431,045.31/x
  3. Step 3: Cross multiply
    1,189,362.58x = 1,783,644.01 × 431,045.31
  4. Step 4: Simplify right side
    1,189,362.58x = 768,831,390,831.15
  5. Step 5: Solve for x
    x = 768,831,390,831.15/1,189,362.58
  6. Step 6: Final answer
    x = 646,423.05

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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.