Home / 849,816.45-1,172,815.26-487,274.04

Finding the Fourth Proportional to 849,816.45, 1,172,815.26 and 487,274.04

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Solution

The fourth proportional to 849,816.45, 1,172,815.26 and 487,274.04 is: 672,477.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,816.45 : 1,172,815.26 = 487,274.04 : x
  2. Step 2: Convert to fraction form
    849,816.45/1,172,815.26 = 487,274.04/x
  3. Step 3: Cross multiply
    849,816.45x = 1,172,815.26 × 487,274.04
  4. Step 4: Simplify right side
    849,816.45x = 571,482,429,913.85
  5. Step 5: Solve for x
    x = 571,482,429,913.85/849,816.45
  6. Step 6: Final answer
    x = 672,477.49

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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.