Home / 1,030,388.96-1,420,293.80-812,241.88

Finding the Fourth Proportional to 1,030,388.96, 1,420,293.80 and 812,241.88

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Solution

The fourth proportional to 1,030,388.96, 1,420,293.80 and 812,241.88 is: 1,119,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,388.96 : 1,420,293.80 = 812,241.88 : x
  2. Step 2: Convert to fraction form
    1,030,388.96/1,420,293.80 = 812,241.88/x
  3. Step 3: Cross multiply
    1,030,388.96x = 1,420,293.80 × 812,241.88
  4. Step 4: Simplify right side
    1,030,388.96x = 1,153,622,106,264.34
  5. Step 5: Solve for x
    x = 1,153,622,106,264.34/1,030,388.96
  6. Step 6: Final answer
    x = 1,119,598.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.