Home / 879,428.70-1,319,143.05-214,580.70

Finding the Fourth Proportional to 879,428.70, 1,319,143.05 and 214,580.70

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Solution

The fourth proportional to 879,428.70, 1,319,143.05 and 214,580.70 is: 321,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,428.70 : 1,319,143.05 = 214,580.70 : x
  2. Step 2: Convert to fraction form
    879,428.70/1,319,143.05 = 214,580.70/x
  3. Step 3: Cross multiply
    879,428.70x = 1,319,143.05 × 214,580.70
  4. Step 4: Simplify right side
    879,428.70x = 283,062,639,069.14
  5. Step 5: Solve for x
    x = 283,062,639,069.14/879,428.70
  6. Step 6: Final answer
    x = 321,871.05

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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.