Home / 672,934.29-928,623.65-371,128.29

Finding the Fourth Proportional to 672,934.29, 928,623.65 and 371,128.29

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Solution

The fourth proportional to 672,934.29, 928,623.65 and 371,128.29 is: 512,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,934.29 : 928,623.65 = 371,128.29 : x
  2. Step 2: Convert to fraction form
    672,934.29/928,623.65 = 371,128.29/x
  3. Step 3: Cross multiply
    672,934.29x = 928,623.65 × 371,128.29
  4. Step 4: Simplify right side
    672,934.29x = 344,638,507,278.06
  5. Step 5: Solve for x
    x = 344,638,507,278.06/672,934.29
  6. Step 6: Final answer
    x = 512,142.88

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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.