Home / 1,186,291.50-1,779,069.24-428,034.30

Finding the Fourth Proportional to 1,186,291.50, 1,779,069.24 and 428,034.30

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Solution

The fourth proportional to 1,186,291.50, 1,779,069.24 and 428,034.30 is: 641,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,291.50 : 1,779,069.24 = 428,034.30 : x
  2. Step 2: Convert to fraction form
    1,186,291.50/1,779,069.24 = 428,034.30/x
  3. Step 3: Cross multiply
    1,186,291.50x = 1,779,069.24 × 428,034.30
  4. Step 4: Simplify right side
    1,186,291.50x = 761,502,656,794.93
  5. Step 5: Solve for x
    x = 761,502,656,794.93/1,186,291.50
  6. Step 6: Final answer
    x = 641,918.67

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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.