Home / 1,355,068.36-1,869,859.50-782,293.04

Finding the Fourth Proportional to 1,355,068.36, 1,869,859.50 and 782,293.04

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Solution

The fourth proportional to 1,355,068.36, 1,869,859.50 and 782,293.04 is: 1,079,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,068.36 : 1,869,859.50 = 782,293.04 : x
  2. Step 2: Convert to fraction form
    1,355,068.36/1,869,859.50 = 782,293.04/x
  3. Step 3: Cross multiply
    1,355,068.36x = 1,869,859.50 × 782,293.04
  4. Step 4: Simplify right side
    1,355,068.36x = 1,462,778,072,627.88
  5. Step 5: Solve for x
    x = 1,462,778,072,627.88/1,355,068.36
  6. Step 6: Final answer
    x = 1,079,486.55

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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.