Home / 1,478,265.40-2,215,867.20-802,919.80

Finding the Fourth Proportional to 1,478,265.40, 2,215,867.20 and 802,919.80

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Solution

The fourth proportional to 1,478,265.40, 2,215,867.20 and 802,919.80 is: 1,203,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,265.40 : 2,215,867.20 = 802,919.80 : x
  2. Step 2: Convert to fraction form
    1,478,265.40/2,215,867.20 = 802,919.80/x
  3. Step 3: Cross multiply
    1,478,265.40x = 2,215,867.20 × 802,919.80
  4. Step 4: Simplify right side
    1,478,265.40x = 1,779,163,649,050.56
  5. Step 5: Solve for x
    x = 1,779,163,649,050.56/1,478,265.40
  6. Step 6: Final answer
    x = 1,203,548.19

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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.