Home / 1,407,408.21-2,108,118.72-830,409.64

Finding the Fourth Proportional to 1,407,408.21, 2,108,118.72 and 830,409.64

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Solution

The fourth proportional to 1,407,408.21, 2,108,118.72 and 830,409.64 is: 1,243,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,408.21 : 2,108,118.72 = 830,409.64 : x
  2. Step 2: Convert to fraction form
    1,407,408.21/2,108,118.72 = 830,409.64/x
  3. Step 3: Cross multiply
    1,407,408.21x = 2,108,118.72 × 830,409.64
  4. Step 4: Simplify right side
    1,407,408.21x = 1,750,602,105,196.20
  5. Step 5: Solve for x
    x = 1,750,602,105,196.20/1,407,408.21
  6. Step 6: Final answer
    x = 1,243,848.15

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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.