Home / 1,205,298.40-1,805,903.76-800,207.20

Finding the Fourth Proportional to 1,205,298.40, 1,805,903.76 and 800,207.20

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Solution

The fourth proportional to 1,205,298.40, 1,805,903.76 and 800,207.20 is: 1,198,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,298.40 : 1,805,903.76 = 800,207.20 : x
  2. Step 2: Convert to fraction form
    1,205,298.40/1,805,903.76 = 800,207.20/x
  3. Step 3: Cross multiply
    1,205,298.40x = 1,805,903.76 × 800,207.20
  4. Step 4: Simplify right side
    1,205,298.40x = 1,445,097,191,259.07
  5. Step 5: Solve for x
    x = 1,445,097,191,259.07/1,205,298.40
  6. Step 6: Final answer
    x = 1,198,953.88

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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.