Home / 760,209.86-1,140,575.61-287,030.54

Finding the Fourth Proportional to 760,209.86, 1,140,575.61 and 287,030.54

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Solution

The fourth proportional to 760,209.86, 1,140,575.61 and 287,030.54 is: 430,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,209.86 : 1,140,575.61 = 287,030.54 : x
  2. Step 2: Convert to fraction form
    760,209.86/1,140,575.61 = 287,030.54/x
  3. Step 3: Cross multiply
    760,209.86x = 1,140,575.61 × 287,030.54
  4. Step 4: Simplify right side
    760,209.86x = 327,380,027,546.25
  5. Step 5: Solve for x
    x = 327,380,027,546.25/760,209.86
  6. Step 6: Final answer
    x = 430,644.28

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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.