Home / 912,835.56-1,367,629.48-778,351.47

Finding the Fourth Proportional to 912,835.56, 1,367,629.48 and 778,351.47

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Solution

The fourth proportional to 912,835.56, 1,367,629.48 and 778,351.47 is: 1,166,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,835.56 : 1,367,629.48 = 778,351.47 : x
  2. Step 2: Convert to fraction form
    912,835.56/1,367,629.48 = 778,351.47/x
  3. Step 3: Cross multiply
    912,835.56x = 1,367,629.48 × 778,351.47
  4. Step 4: Simplify right side
    912,835.56x = 1,064,496,416,173.34
  5. Step 5: Solve for x
    x = 1,064,496,416,173.34/912,835.56
  6. Step 6: Final answer
    x = 1,166,142.58

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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.