Home / 1,211,365.40-1,814,861.10-705,512.30

Finding the Fourth Proportional to 1,211,365.40, 1,814,861.10 and 705,512.30

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Solution

The fourth proportional to 1,211,365.40, 1,814,861.10 and 705,512.30 is: 1,056,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,365.40 : 1,814,861.10 = 705,512.30 : x
  2. Step 2: Convert to fraction form
    1,211,365.40/1,814,861.10 = 705,512.30/x
  3. Step 3: Cross multiply
    1,211,365.40x = 1,814,861.10 × 705,512.30
  4. Step 4: Simplify right side
    1,211,365.40x = 1,280,406,828,841.53
  5. Step 5: Solve for x
    x = 1,280,406,828,841.53/1,211,365.40
  6. Step 6: Final answer
    x = 1,056,994.72

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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.