Home / 1,918,117.78-2,877,175.86-570,274.54

Finding the Fourth Proportional to 1,918,117.78, 2,877,175.86 and 570,274.54

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Solution

The fourth proportional to 1,918,117.78, 2,877,175.86 and 570,274.54 is: 855,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,117.78 : 2,877,175.86 = 570,274.54 : x
  2. Step 2: Convert to fraction form
    1,918,117.78/2,877,175.86 = 570,274.54/x
  3. Step 3: Cross multiply
    1,918,117.78x = 2,877,175.86 × 570,274.54
  4. Step 4: Simplify right side
    1,918,117.78x = 1,640,780,140,060.60
  5. Step 5: Solve for x
    x = 1,640,780,140,060.60/1,918,117.78
  6. Step 6: Final answer
    x = 855,411.57

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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.