Home / 740,782.78-1,111,174.59-208,303.81

Finding the Fourth Proportional to 740,782.78, 1,111,174.59 and 208,303.81

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Solution

The fourth proportional to 740,782.78, 1,111,174.59 and 208,303.81 is: 312,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,782.78 : 1,111,174.59 = 208,303.81 : x
  2. Step 2: Convert to fraction form
    740,782.78/1,111,174.59 = 208,303.81/x
  3. Step 3: Cross multiply
    740,782.78x = 1,111,174.59 × 208,303.81
  4. Step 4: Simplify right side
    740,782.78x = 231,461,900,672.19
  5. Step 5: Solve for x
    x = 231,461,900,672.19/740,782.78
  6. Step 6: Final answer
    x = 312,455.83

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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.