Home / 1,263,732.10-1,895,598.15-785,435.20

Finding the Fourth Proportional to 1,263,732.10, 1,895,598.15 and 785,435.20

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Solution

The fourth proportional to 1,263,732.10, 1,895,598.15 and 785,435.20 is: 1,178,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,732.10 : 1,895,598.15 = 785,435.20 : x
  2. Step 2: Convert to fraction form
    1,263,732.10/1,895,598.15 = 785,435.20/x
  3. Step 3: Cross multiply
    1,263,732.10x = 1,895,598.15 × 785,435.20
  4. Step 4: Simplify right side
    1,263,732.10x = 1,488,869,512,064.88
  5. Step 5: Solve for x
    x = 1,488,869,512,064.88/1,263,732.10
  6. Step 6: Final answer
    x = 1,178,152.80

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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.