Home / 1,452,912.40-2,005,031.40-808,406.80

Finding the Fourth Proportional to 1,452,912.40, 2,005,031.40 and 808,406.80

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Solution

The fourth proportional to 1,452,912.40, 2,005,031.40 and 808,406.80 is: 1,115,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452,912.40 : 2,005,031.40 = 808,406.80 : x
  2. Step 2: Convert to fraction form
    1,452,912.40/2,005,031.40 = 808,406.80/x
  3. Step 3: Cross multiply
    1,452,912.40x = 2,005,031.40 × 808,406.80
  4. Step 4: Simplify right side
    1,452,912.40x = 1,620,881,017,973.52
  5. Step 5: Solve for x
    x = 1,620,881,017,973.52/1,452,912.40
  6. Step 6: Final answer
    x = 1,115,608.22

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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.