Home / 495,434.51-683,676.73-280,576.10

Finding the Fourth Proportional to 495,434.51, 683,676.73 and 280,576.10

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Solution

The fourth proportional to 495,434.51, 683,676.73 and 280,576.10 is: 387,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,434.51 : 683,676.73 = 280,576.10 : x
  2. Step 2: Convert to fraction form
    495,434.51/683,676.73 = 280,576.10/x
  3. Step 3: Cross multiply
    495,434.51x = 683,676.73 × 280,576.10
  4. Step 4: Simplify right side
    495,434.51x = 191,823,349,161.27
  5. Step 5: Solve for x
    x = 191,823,349,161.27/495,434.51
  6. Step 6: Final answer
    x = 387,182.05

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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.