Home / 1,918,688-2,878,171.52-736,736

Finding the Fourth Proportional to 1,918,688, 2,878,171.52 and 736,736

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Solution

The fourth proportional to 1,918,688, 2,878,171.52 and 736,736 is: 1,105,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,688 : 2,878,171.52 = 736,736 : x
  2. Step 2: Convert to fraction form
    1,918,688/2,878,171.52 = 736,736/x
  3. Step 3: Cross multiply
    1,918,688x = 2,878,171.52 × 736,736
  4. Step 4: Simplify right side
    1,918,688x = 2,120,452,572,958.72
  5. Step 5: Solve for x
    x = 2,120,452,572,958.72/1,918,688
  6. Step 6: Final answer
    x = 1,105,157.57

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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.