Home / 849,972.64-1,172,966.52-487,410.16

Finding the Fourth Proportional to 849,972.64, 1,172,966.52 and 487,410.16

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Solution

The fourth proportional to 849,972.64, 1,172,966.52 and 487,410.16 is: 672,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,972.64 : 1,172,966.52 = 487,410.16 : x
  2. Step 2: Convert to fraction form
    849,972.64/1,172,966.52 = 487,410.16/x
  3. Step 3: Cross multiply
    849,972.64x = 1,172,966.52 × 487,410.16
  4. Step 4: Simplify right side
    849,972.64x = 571,715,799,187.84
  5. Step 5: Solve for x
    x = 571,715,799,187.84/849,972.64
  6. Step 6: Final answer
    x = 672,628.47

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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.