Home / 899,027.12-1,240,641.78-491,118.50

Finding the Fourth Proportional to 899,027.12, 1,240,641.78 and 491,118.50

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Solution

The fourth proportional to 899,027.12, 1,240,641.78 and 491,118.50 is: 677,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,027.12 : 1,240,641.78 = 491,118.50 : x
  2. Step 2: Convert to fraction form
    899,027.12/1,240,641.78 = 491,118.50/x
  3. Step 3: Cross multiply
    899,027.12x = 1,240,641.78 × 491,118.50
  4. Step 4: Simplify right side
    899,027.12x = 609,302,130,030.93
  5. Step 5: Solve for x
    x = 609,302,130,030.93/899,027.12
  6. Step 6: Final answer
    x = 677,734.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.