Home / 287,040.38-427,528.43-272,052.14

Finding the Fourth Proportional to 287,040.38, 427,528.43 and 272,052.14

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Solution

The fourth proportional to 287,040.38, 427,528.43 and 272,052.14 is: 405,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,040.38 : 427,528.43 = 272,052.14 : x
  2. Step 2: Convert to fraction form
    287,040.38/427,528.43 = 272,052.14/x
  3. Step 3: Cross multiply
    287,040.38x = 427,528.43 × 272,052.14
  4. Step 4: Simplify right side
    287,040.38x = 116,310,021,814.63
  5. Step 5: Solve for x
    x = 116,310,021,814.63/287,040.38
  6. Step 6: Final answer
    x = 405,204.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.