Home / 770,597.20-1,155,897.42-415,778.32

Finding the Fourth Proportional to 770,597.20, 1,155,897.42 and 415,778.32

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Solution

The fourth proportional to 770,597.20, 1,155,897.42 and 415,778.32 is: 623,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,597.20 : 1,155,897.42 = 415,778.32 : x
  2. Step 2: Convert to fraction form
    770,597.20/1,155,897.42 = 415,778.32/x
  3. Step 3: Cross multiply
    770,597.20x = 1,155,897.42 × 415,778.32
  4. Step 4: Simplify right side
    770,597.20x = 480,597,087,379.93
  5. Step 5: Solve for x
    x = 480,597,087,379.93/770,597.20
  6. Step 6: Final answer
    x = 623,668.35

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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.