Home / 908,066.90-1,362,100.35-860,143.70

Finding the Fourth Proportional to 908,066.90, 1,362,100.35 and 860,143.70

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Solution

The fourth proportional to 908,066.90, 1,362,100.35 and 860,143.70 is: 1,290,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,066.90 : 1,362,100.35 = 860,143.70 : x
  2. Step 2: Convert to fraction form
    908,066.90/1,362,100.35 = 860,143.70/x
  3. Step 3: Cross multiply
    908,066.90x = 1,362,100.35 × 860,143.70
  4. Step 4: Simplify right side
    908,066.90x = 1,171,602,034,820.30
  5. Step 5: Solve for x
    x = 1,171,602,034,820.30/908,066.90
  6. Step 6: Final answer
    x = 1,290,215.55

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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.