Home / 874,918.80-1,312,378.20-210,070.80

Finding the Fourth Proportional to 874,918.80, 1,312,378.20 and 210,070.80

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Solution

The fourth proportional to 874,918.80, 1,312,378.20 and 210,070.80 is: 315,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,918.80 : 1,312,378.20 = 210,070.80 : x
  2. Step 2: Convert to fraction form
    874,918.80/1,312,378.20 = 210,070.80/x
  3. Step 3: Cross multiply
    874,918.80x = 1,312,378.20 × 210,070.80
  4. Step 4: Simplify right side
    874,918.80x = 275,692,338,376.56
  5. Step 5: Solve for x
    x = 275,692,338,376.56/874,918.80
  6. Step 6: Final answer
    x = 315,106.20

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Double scale
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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.