Home / 670,622.69-1,006,377.21-315,738.20

Finding the Fourth Proportional to 670,622.69, 1,006,377.21 and 315,738.20

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Solution

The fourth proportional to 670,622.69, 1,006,377.21 and 315,738.20 is: 473,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,622.69 : 1,006,377.21 = 315,738.20 : x
  2. Step 2: Convert to fraction form
    670,622.69/1,006,377.21 = 315,738.20/x
  3. Step 3: Cross multiply
    670,622.69x = 1,006,377.21 × 315,738.20
  4. Step 4: Simplify right side
    670,622.69x = 317,751,731,322.37
  5. Step 5: Solve for x
    x = 317,751,731,322.37/670,622.69
  6. Step 6: Final answer
    x = 473,815.95

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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.