Home / 1,241,138.40-1,863,457.20-768,746.40

Finding the Fourth Proportional to 1,241,138.40, 1,863,457.20 and 768,746.40

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Solution

The fourth proportional to 1,241,138.40, 1,863,457.20 and 768,746.40 is: 1,154,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,138.40 : 1,863,457.20 = 768,746.40 : x
  2. Step 2: Convert to fraction form
    1,241,138.40/1,863,457.20 = 768,746.40/x
  3. Step 3: Cross multiply
    1,241,138.40x = 1,863,457.20 × 768,746.40
  4. Step 4: Simplify right side
    1,241,138.40x = 1,432,526,014,054.08
  5. Step 5: Solve for x
    x = 1,432,526,014,054.08/1,241,138.40
  6. Step 6: Final answer
    x = 1,154,203.28

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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.