Home / 672,210.84-1,007,768.52-312,608.60

Finding the Fourth Proportional to 672,210.84, 1,007,768.52 and 312,608.60

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Solution

The fourth proportional to 672,210.84, 1,007,768.52 and 312,608.60 is: 468,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,210.84 : 1,007,768.52 = 312,608.60 : x
  2. Step 2: Convert to fraction form
    672,210.84/1,007,768.52 = 312,608.60/x
  3. Step 3: Cross multiply
    672,210.84x = 1,007,768.52 × 312,608.60
  4. Step 4: Simplify right side
    672,210.84x = 315,037,106,161.27
  5. Step 5: Solve for x
    x = 315,037,106,161.27/672,210.84
  6. Step 6: Final answer
    x = 468,658.18

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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.