Home / 777,775.36-1,166,785.44-272,490.88

Finding the Fourth Proportional to 777,775.36, 1,166,785.44 and 272,490.88

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Solution

The fourth proportional to 777,775.36, 1,166,785.44 and 272,490.88 is: 408,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,775.36 : 1,166,785.44 = 272,490.88 : x
  2. Step 2: Convert to fraction form
    777,775.36/1,166,785.44 = 272,490.88/x
  3. Step 3: Cross multiply
    777,775.36x = 1,166,785.44 × 272,490.88
  4. Step 4: Simplify right side
    777,775.36x = 317,938,391,316.79
  5. Step 5: Solve for x
    x = 317,938,391,316.79/777,775.36
  6. Step 6: Final answer
    x = 408,779.20

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1.5x scale

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.