Home / 740,516.34-1,110,812.55-208,078.89

Finding the Fourth Proportional to 740,516.34, 1,110,812.55 and 208,078.89

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Solution

The fourth proportional to 740,516.34, 1,110,812.55 and 208,078.89 is: 312,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,516.34 : 1,110,812.55 = 208,078.89 : x
  2. Step 2: Convert to fraction form
    740,516.34/1,110,812.55 = 208,078.89/x
  3. Step 3: Cross multiply
    740,516.34x = 1,110,812.55 × 208,078.89
  4. Step 4: Simplify right side
    740,516.34x = 231,136,642,402.07
  5. Step 5: Solve for x
    x = 231,136,642,402.07/740,516.34
  6. Step 6: Final answer
    x = 312,129.02

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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.