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Finding the Fourth Proportional to 1,242,000.03, 1,863,000.06 and 400,551.78

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Solution

The fourth proportional to 1,242,000.03, 1,863,000.06 and 400,551.78 is: 600,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,000.03 : 1,863,000.06 = 400,551.78 : x
  2. Step 2: Convert to fraction form
    1,242,000.03/1,863,000.06 = 400,551.78/x
  3. Step 3: Cross multiply
    1,242,000.03x = 1,863,000.06 × 400,551.78
  4. Step 4: Simplify right side
    1,242,000.03x = 746,227,990,173.11
  5. Step 5: Solve for x
    x = 746,227,990,173.11/1,242,000.03
  6. Step 6: Final answer
    x = 600,827.67

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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.