Home / 874,744.40-1,312,116.60-313,576.40

Finding the Fourth Proportional to 874,744.40, 1,312,116.60 and 313,576.40

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Solution

The fourth proportional to 874,744.40, 1,312,116.60 and 313,576.40 is: 470,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,744.40 : 1,312,116.60 = 313,576.40 : x
  2. Step 2: Convert to fraction form
    874,744.40/1,312,116.60 = 313,576.40/x
  3. Step 3: Cross multiply
    874,744.40x = 1,312,116.60 × 313,576.40
  4. Step 4: Simplify right side
    874,744.40x = 411,448,799,808.24
  5. Step 5: Solve for x
    x = 411,448,799,808.24/874,744.40
  6. Step 6: Final answer
    x = 470,364.60

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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.