Home / 691,405.80-1,037,108.70-452,257.35

Finding the Fourth Proportional to 691,405.80, 1,037,108.70 and 452,257.35

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Solution

The fourth proportional to 691,405.80, 1,037,108.70 and 452,257.35 is: 678,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,405.80 : 1,037,108.70 = 452,257.35 : x
  2. Step 2: Convert to fraction form
    691,405.80/1,037,108.70 = 452,257.35/x
  3. Step 3: Cross multiply
    691,405.80x = 1,037,108.70 × 452,257.35
  4. Step 4: Simplify right side
    691,405.80x = 469,040,032,323.95
  5. Step 5: Solve for x
    x = 469,040,032,323.95/691,405.80
  6. Step 6: Final answer
    x = 678,386.03

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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.