Home / 1,221,075-1,685,104.56-677,234.52

Finding the Fourth Proportional to 1,221,075, 1,685,104.56 and 677,234.52

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Solution

The fourth proportional to 1,221,075, 1,685,104.56 and 677,234.52 is: 934,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,075 : 1,685,104.56 = 677,234.52 : x
  2. Step 2: Convert to fraction form
    1,221,075/1,685,104.56 = 677,234.52/x
  3. Step 3: Cross multiply
    1,221,075x = 1,685,104.56 × 677,234.52
  4. Step 4: Simplify right side
    1,221,075x = 1,141,210,977,841.41
  5. Step 5: Solve for x
    x = 1,141,210,977,841.41/1,221,075
  6. Step 6: Final answer
    x = 934,595.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.