Home / 487,433.09-672,666.53-272,568.54

Finding the Fourth Proportional to 487,433.09, 672,666.53 and 272,568.54

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Solution

The fourth proportional to 487,433.09, 672,666.53 and 272,568.54 is: 376,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,433.09 : 672,666.53 = 272,568.54 : x
  2. Step 2: Convert to fraction form
    487,433.09/672,666.53 = 272,568.54/x
  3. Step 3: Cross multiply
    487,433.09x = 672,666.53 × 272,568.54
  4. Step 4: Simplify right side
    487,433.09x = 183,347,735,148.62
  5. Step 5: Solve for x
    x = 183,347,735,148.62/487,433.09
  6. Step 6: Final answer
    x = 376,149.54

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1.5x scale

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.