Home / 519,147.40-778,775.44-140,071.27

Finding the Fourth Proportional to 519,147.40, 778,775.44 and 140,071.27

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Solution

The fourth proportional to 519,147.40, 778,775.44 and 140,071.27 is: 210,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,147.40 : 778,775.44 = 140,071.27 : x
  2. Step 2: Convert to fraction form
    519,147.40/778,775.44 = 140,071.27/x
  3. Step 3: Cross multiply
    519,147.40x = 778,775.44 × 140,071.27
  4. Step 4: Simplify right side
    519,147.40x = 109,084,064,925.61
  5. Step 5: Solve for x
    x = 109,084,064,925.61/519,147.40
  6. Step 6: Final answer
    x = 210,121.57

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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.