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Finding the Fourth Proportional to 402,865.90, 603,314.70 and 302,482.60

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Solution

The fourth proportional to 402,865.90, 603,314.70 and 302,482.60 is: 452,984.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,865.90 : 603,314.70 = 302,482.60 : x
  2. Step 2: Convert to fraction form
    402,865.90/603,314.70 = 302,482.60/x
  3. Step 3: Cross multiply
    402,865.90x = 603,314.70 × 302,482.60
  4. Step 4: Simplify right side
    402,865.90x = 182,492,199,074.22
  5. Step 5: Solve for x
    x = 182,492,199,074.22/402,865.90
  6. Step 6: Final answer
    x = 452,984.97

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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.