Home / 709,424.39-1,064,556.78-664,539.86

Finding the Fourth Proportional to 709,424.39, 1,064,556.78 and 664,539.86

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Solution

The fourth proportional to 709,424.39, 1,064,556.78 and 664,539.86 is: 997,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,424.39 : 1,064,556.78 = 664,539.86 : x
  2. Step 2: Convert to fraction form
    709,424.39/1,064,556.78 = 664,539.86/x
  3. Step 3: Cross multiply
    709,424.39x = 1,064,556.78 × 664,539.86
  4. Step 4: Simplify right side
    709,424.39x = 707,440,413,543.25
  5. Step 5: Solve for x
    x = 707,440,413,543.25/709,424.39
  6. Step 6: Final answer
    x = 997,203.40

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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.