Home / 1,242,141.12-1,863,210.78-400,692.90

Finding the Fourth Proportional to 1,242,141.12, 1,863,210.78 and 400,692.90

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Solution

The fourth proportional to 1,242,141.12, 1,863,210.78 and 400,692.90 is: 601,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,141.12 : 1,863,210.78 = 400,692.90 : x
  2. Step 2: Convert to fraction form
    1,242,141.12/1,863,210.78 = 400,692.90/x
  3. Step 3: Cross multiply
    1,242,141.12x = 1,863,210.78 × 400,692.90
  4. Step 4: Simplify right side
    1,242,141.12x = 746,575,330,749.46
  5. Step 5: Solve for x
    x = 746,575,330,749.46/1,242,141.12
  6. Step 6: Final answer
    x = 601,039.06

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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.