Home / 1,186,040.21-1,779,169.70-387,325.91

Finding the Fourth Proportional to 1,186,040.21, 1,779,169.70 and 387,325.91

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Solution

The fourth proportional to 1,186,040.21, 1,779,169.70 and 387,325.91 is: 581,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,040.21 : 1,779,169.70 = 387,325.91 : x
  2. Step 2: Convert to fraction form
    1,186,040.21/1,779,169.70 = 387,325.91/x
  3. Step 3: Cross multiply
    1,186,040.21x = 1,779,169.70 × 387,325.91
  4. Step 4: Simplify right side
    1,186,040.21x = 689,118,521,160.30
  5. Step 5: Solve for x
    x = 689,118,521,160.30/1,186,040.21
  6. Step 6: Final answer
    x = 581,024.59

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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.