Home / 637,942.14-879,768.78-465,587.10

Finding the Fourth Proportional to 637,942.14, 879,768.78 and 465,587.10

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Solution

The fourth proportional to 637,942.14, 879,768.78 and 465,587.10 is: 642,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,942.14 : 879,768.78 = 465,587.10 : x
  2. Step 2: Convert to fraction form
    637,942.14/879,768.78 = 465,587.10/x
  3. Step 3: Cross multiply
    637,942.14x = 879,768.78 × 465,587.10
  4. Step 4: Simplify right side
    637,942.14x = 409,608,994,950.74
  5. Step 5: Solve for x
    x = 409,608,994,950.74/637,942.14
  6. Step 6: Final answer
    x = 642,078.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.