Home / 1,158,890.38-1,738,584.69-390,464.47

Finding the Fourth Proportional to 1,158,890.38, 1,738,584.69 and 390,464.47

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Solution

The fourth proportional to 1,158,890.38, 1,738,584.69 and 390,464.47 is: 585,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,890.38 : 1,738,584.69 = 390,464.47 : x
  2. Step 2: Convert to fraction form
    1,158,890.38/1,738,584.69 = 390,464.47/x
  3. Step 3: Cross multiply
    1,158,890.38x = 1,738,584.69 × 390,464.47
  4. Step 4: Simplify right side
    1,158,890.38x = 678,855,549,530.96
  5. Step 5: Solve for x
    x = 678,855,549,530.96/1,158,890.38
  6. Step 6: Final answer
    x = 585,780.64

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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.