Home / 1,185,659.76-1,778,494.08-287,100

Finding the Fourth Proportional to 1,185,659.76, 1,778,494.08 and 287,100

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Solution

The fourth proportional to 1,185,659.76, 1,778,494.08 and 287,100 is: 430,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,659.76 : 1,778,494.08 = 287,100 : x
  2. Step 2: Convert to fraction form
    1,185,659.76/1,778,494.08 = 287,100/x
  3. Step 3: Cross multiply
    1,185,659.76x = 1,778,494.08 × 287,100
  4. Step 4: Simplify right side
    1,185,659.76x = 510,605,650,368
  5. Step 5: Solve for x
    x = 510,605,650,368/1,185,659.76
  6. Step 6: Final answer
    x = 430,651.08

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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.