Home / 781,090.05-1,171,624.14-307,779.51

Finding the Fourth Proportional to 781,090.05, 1,171,624.14 and 307,779.51

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Solution

The fourth proportional to 781,090.05, 1,171,624.14 and 307,779.51 is: 461,664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,090.05 : 1,171,624.14 = 307,779.51 : x
  2. Step 2: Convert to fraction form
    781,090.05/1,171,624.14 = 307,779.51/x
  3. Step 3: Cross multiply
    781,090.05x = 1,171,624.14 × 307,779.51
  4. Step 4: Simplify right side
    781,090.05x = 360,601,903,713.37
  5. Step 5: Solve for x
    x = 360,601,903,713.37/781,090.05
  6. Step 6: Final answer
    x = 461,664.96

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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.