Home / 1,186,367.94-1,779,183.36-428,111.04

Finding the Fourth Proportional to 1,186,367.94, 1,779,183.36 and 428,111.04

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Solution

The fourth proportional to 1,186,367.94, 1,779,183.36 and 428,111.04 is: 642,033.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,367.94 : 1,779,183.36 = 428,111.04 : x
  2. Step 2: Convert to fraction form
    1,186,367.94/1,779,183.36 = 428,111.04/x
  3. Step 3: Cross multiply
    1,186,367.94x = 1,779,183.36 × 428,111.04
  4. Step 4: Simplify right side
    1,186,367.94x = 761,688,038,600.29
  5. Step 5: Solve for x
    x = 761,688,038,600.29/1,186,367.94
  6. Step 6: Final answer
    x = 642,033.57

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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.