Home / 812,676.13-1,121,426.51-463,814.82

Finding the Fourth Proportional to 812,676.13, 1,121,426.51 and 463,814.82

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Solution

The fourth proportional to 812,676.13, 1,121,426.51 and 463,814.82 is: 640,026.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,676.13 : 1,121,426.51 = 463,814.82 : x
  2. Step 2: Convert to fraction form
    812,676.13/1,121,426.51 = 463,814.82/x
  3. Step 3: Cross multiply
    812,676.13x = 1,121,426.51 × 463,814.82
  4. Step 4: Simplify right side
    812,676.13x = 520,134,236,038.42
  5. Step 5: Solve for x
    x = 520,134,236,038.42/812,676.13
  6. Step 6: Final answer
    x = 640,026.47

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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.