Home / 1,028,264.96-1,421,714.42-900,574.53

Finding the Fourth Proportional to 1,028,264.96, 1,421,714.42 and 900,574.53

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Solution

The fourth proportional to 1,028,264.96, 1,421,714.42 and 900,574.53 is: 1,245,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,264.96 : 1,421,714.42 = 900,574.53 : x
  2. Step 2: Convert to fraction form
    1,028,264.96/1,421,714.42 = 900,574.53/x
  3. Step 3: Cross multiply
    1,028,264.96x = 1,421,714.42 × 900,574.53
  4. Step 4: Simplify right side
    1,028,264.96x = 1,280,359,791,082.85
  5. Step 5: Solve for x
    x = 1,280,359,791,082.85/1,028,264.96
  6. Step 6: Final answer
    x = 1,245,165.25

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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.