Home / 446,823.40-670,235.10-426,087.40

Finding the Fourth Proportional to 446,823.40, 670,235.10 and 426,087.40

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Solution

The fourth proportional to 446,823.40, 670,235.10 and 426,087.40 is: 639,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,823.40 : 670,235.10 = 426,087.40 : x
  2. Step 2: Convert to fraction form
    446,823.40/670,235.10 = 426,087.40/x
  3. Step 3: Cross multiply
    446,823.40x = 670,235.10 × 426,087.40
  4. Step 4: Simplify right side
    446,823.40x = 285,578,731,147.74
  5. Step 5: Solve for x
    x = 285,578,731,147.74/446,823.40
  6. Step 6: Final answer
    x = 639,131.10

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Similar ratio
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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.