Home / 745,110.90-1,117,330.10-212,505.32

Finding the Fourth Proportional to 745,110.90, 1,117,330.10 and 212,505.32

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Solution

The fourth proportional to 745,110.90, 1,117,330.10 and 212,505.32 is: 318,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,110.90 : 1,117,330.10 = 212,505.32 : x
  2. Step 2: Convert to fraction form
    745,110.90/1,117,330.10 = 212,505.32/x
  3. Step 3: Cross multiply
    745,110.90x = 1,117,330.10 × 212,505.32
  4. Step 4: Simplify right side
    745,110.90x = 237,438,592,973.83
  5. Step 5: Solve for x
    x = 237,438,592,973.83/745,110.90
  6. Step 6: Final answer
    x = 318,662.09

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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.