Home / 1,404,228.80-2,106,561.72-457,379.12

Finding the Fourth Proportional to 1,404,228.80, 2,106,561.72 and 457,379.12

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Solution

The fourth proportional to 1,404,228.80, 2,106,561.72 and 457,379.12 is: 686,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,228.80 : 2,106,561.72 = 457,379.12 : x
  2. Step 2: Convert to fraction form
    1,404,228.80/2,106,561.72 = 457,379.12/x
  3. Step 3: Cross multiply
    1,404,228.80x = 2,106,561.72 × 457,379.12
  4. Step 4: Simplify right side
    1,404,228.80x = 963,497,345,719.29
  5. Step 5: Solve for x
    x = 963,497,345,719.29/1,404,228.80
  6. Step 6: Final answer
    x = 686,139.86

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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.