Home / 1,185,720.10-1,778,574.20-287,161.82

Finding the Fourth Proportional to 1,185,720.10, 1,778,574.20 and 287,161.82

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Solution

The fourth proportional to 1,185,720.10, 1,778,574.20 and 287,161.82 is: 430,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,720.10 : 1,778,574.20 = 287,161.82 : x
  2. Step 2: Convert to fraction form
    1,185,720.10/1,778,574.20 = 287,161.82/x
  3. Step 3: Cross multiply
    1,185,720.10x = 1,778,574.20 × 287,161.82
  4. Step 4: Simplify right side
    1,185,720.10x = 510,738,604,277.04
  5. Step 5: Solve for x
    x = 510,738,604,277.04/1,185,720.10
  6. Step 6: Final answer
    x = 430,741.29

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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.