Home / 1,153,065.78-1,725,612.86-720,630.27

Finding the Fourth Proportional to 1,153,065.78, 1,725,612.86 and 720,630.27

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Solution

The fourth proportional to 1,153,065.78, 1,725,612.86 and 720,630.27 is: 1,078,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,065.78 : 1,725,612.86 = 720,630.27 : x
  2. Step 2: Convert to fraction form
    1,153,065.78/1,725,612.86 = 720,630.27/x
  3. Step 3: Cross multiply
    1,153,065.78x = 1,725,612.86 × 720,630.27
  4. Step 4: Simplify right side
    1,153,065.78x = 1,243,528,863,018.85
  5. Step 5: Solve for x
    x = 1,243,528,863,018.85/1,153,065.78
  6. Step 6: Final answer
    x = 1,078,454.40

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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.