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Finding the Fourth Proportional to 456,067.70, 684,101.55 and 288,106.10

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Solution

The fourth proportional to 456,067.70, 684,101.55 and 288,106.10 is: 432,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,067.70 : 684,101.55 = 288,106.10 : x
  2. Step 2: Convert to fraction form
    456,067.70/684,101.55 = 288,106.10/x
  3. Step 3: Cross multiply
    456,067.70x = 684,101.55 × 288,106.10
  4. Step 4: Simplify right side
    456,067.70x = 197,093,829,574.46
  5. Step 5: Solve for x
    x = 197,093,829,574.46/456,067.70
  6. Step 6: Final answer
    x = 432,159.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.