Home / 911,037.80-1,366,556.70-698,461.40

Finding the Fourth Proportional to 911,037.80, 1,366,556.70 and 698,461.40

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Solution

The fourth proportional to 911,037.80, 1,366,556.70 and 698,461.40 is: 1,047,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,037.80 : 1,366,556.70 = 698,461.40 : x
  2. Step 2: Convert to fraction form
    911,037.80/1,366,556.70 = 698,461.40/x
  3. Step 3: Cross multiply
    911,037.80x = 1,366,556.70 × 698,461.40
  4. Step 4: Simplify right side
    911,037.80x = 954,487,105,861.38
  5. Step 5: Solve for x
    x = 954,487,105,861.38/911,037.80
  6. Step 6: Final answer
    x = 1,047,692.10

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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.