Home / 738,431.54-1,109,959.41-487,325.69

Finding the Fourth Proportional to 738,431.54, 1,109,959.41 and 487,325.69

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Solution

The fourth proportional to 738,431.54, 1,109,959.41 and 487,325.69 is: 732,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,431.54 : 1,109,959.41 = 487,325.69 : x
  2. Step 2: Convert to fraction form
    738,431.54/1,109,959.41 = 487,325.69/x
  3. Step 3: Cross multiply
    738,431.54x = 1,109,959.41 × 487,325.69
  4. Step 4: Simplify right side
    738,431.54x = 540,911,735,350.24
  5. Step 5: Solve for x
    x = 540,911,735,350.24/738,431.54
  6. Step 6: Final answer
    x = 732,514.40

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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.