Home / 487,741.40-673,109.27-272,868.64

Finding the Fourth Proportional to 487,741.40, 673,109.27 and 272,868.64

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Solution

The fourth proportional to 487,741.40, 673,109.27 and 272,868.64 is: 376,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,741.40 : 673,109.27 = 272,868.64 : x
  2. Step 2: Convert to fraction form
    487,741.40/673,109.27 = 272,868.64/x
  3. Step 3: Cross multiply
    487,741.40x = 673,109.27 × 272,868.64
  4. Step 4: Simplify right side
    487,741.40x = 183,670,411,076.29
  5. Step 5: Solve for x
    x = 183,670,411,076.29/487,741.40
  6. Step 6: Final answer
    x = 376,573.35

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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.