Home / 1,998,008.40-2,997,401.40-860,768.40

Finding the Fourth Proportional to 1,998,008.40, 2,997,401.40 and 860,768.40

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Solution

The fourth proportional to 1,998,008.40, 2,997,401.40 and 860,768.40 is: 1,291,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,008.40 : 2,997,401.40 = 860,768.40 : x
  2. Step 2: Convert to fraction form
    1,998,008.40/2,997,401.40 = 860,768.40/x
  3. Step 3: Cross multiply
    1,998,008.40x = 2,997,401.40 × 860,768.40
  4. Step 4: Simplify right side
    1,998,008.40x = 2,580,068,407,235.76
  5. Step 5: Solve for x
    x = 2,580,068,407,235.76/1,998,008.40
  6. Step 6: Final answer
    x = 1,291,320.10

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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.