Home / 849,665.44-1,172,401.10-487,022.56

Finding the Fourth Proportional to 849,665.44, 1,172,401.10 and 487,022.56

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Solution

The fourth proportional to 849,665.44, 1,172,401.10 and 487,022.56 is: 672,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,665.44 : 1,172,401.10 = 487,022.56 : x
  2. Step 2: Convert to fraction form
    849,665.44/1,172,401.10 = 487,022.56/x
  3. Step 3: Cross multiply
    849,665.44x = 1,172,401.10 × 487,022.56
  4. Step 4: Simplify right side
    849,665.44x = 570,985,785,068.82
  5. Step 5: Solve for x
    x = 570,985,785,068.82/849,665.44
  6. Step 6: Final answer
    x = 672,012.49

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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.