Home / 849,971.64-1,172,965.14-487,409.16

Finding the Fourth Proportional to 849,971.64, 1,172,965.14 and 487,409.16

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Solution

The fourth proportional to 849,971.64, 1,172,965.14 and 487,409.16 is: 672,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,971.64 : 1,172,965.14 = 487,409.16 : x
  2. Step 2: Convert to fraction form
    849,971.64/1,172,965.14 = 487,409.16/x
  3. Step 3: Cross multiply
    849,971.64x = 1,172,965.14 × 487,409.16
  4. Step 4: Simplify right side
    849,971.64x = 571,713,953,596.68
  5. Step 5: Solve for x
    x = 571,713,953,596.68/849,971.64
  6. Step 6: Final answer
    x = 672,627.09

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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.