Home / 874,416.35-1,312,006.04-306,205.28

Finding the Fourth Proportional to 874,416.35, 1,312,006.04 and 306,205.28

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Solution

The fourth proportional to 874,416.35, 1,312,006.04 and 306,205.28 is: 459,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,416.35 : 1,312,006.04 = 306,205.28 : x
  2. Step 2: Convert to fraction form
    874,416.35/1,312,006.04 = 306,205.28/x
  3. Step 3: Cross multiply
    874,416.35x = 1,312,006.04 × 306,205.28
  4. Step 4: Simplify right side
    874,416.35x = 401,743,168,748.84
  5. Step 5: Solve for x
    x = 401,743,168,748.84/874,416.35
  6. Step 6: Final answer
    x = 459,441.51

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1.5x scale

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.