Home / 771,405.12-1,157,412.26-238,967.67

Finding the Fourth Proportional to 771,405.12, 1,157,412.26 and 238,967.67

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Solution

The fourth proportional to 771,405.12, 1,157,412.26 and 238,967.67 is: 358,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,405.12 : 1,157,412.26 = 238,967.67 : x
  2. Step 2: Convert to fraction form
    771,405.12/1,157,412.26 = 238,967.67/x
  3. Step 3: Cross multiply
    771,405.12x = 1,157,412.26 × 238,967.67
  4. Step 4: Simplify right side
    771,405.12x = 276,584,111,001.63
  5. Step 5: Solve for x
    x = 276,584,111,001.63/771,405.12
  6. Step 6: Final answer
    x = 358,545.86

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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.