Home / 1,030,359.72-1,420,254.10-812,212.92

Finding the Fourth Proportional to 1,030,359.72, 1,420,254.10 and 812,212.92

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Solution

The fourth proportional to 1,030,359.72, 1,420,254.10 and 812,212.92 is: 1,119,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,359.72 : 1,420,254.10 = 812,212.92 : x
  2. Step 2: Convert to fraction form
    1,030,359.72/1,420,254.10 = 812,212.92/x
  3. Step 3: Cross multiply
    1,030,359.72x = 1,420,254.10 × 812,212.92
  4. Step 4: Simplify right side
    1,030,359.72x = 1,153,548,729,702.97
  5. Step 5: Solve for x
    x = 1,153,548,729,702.97/1,030,359.72
  6. Step 6: Final answer
    x = 1,119,559.23

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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.