Home / 869,119.74-1,303,359.93-300,357.18

Finding the Fourth Proportional to 869,119.74, 1,303,359.93 and 300,357.18

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Solution

The fourth proportional to 869,119.74, 1,303,359.93 and 300,357.18 is: 450,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,119.74 : 1,303,359.93 = 300,357.18 : x
  2. Step 2: Convert to fraction form
    869,119.74/1,303,359.93 = 300,357.18/x
  3. Step 3: Cross multiply
    869,119.74x = 1,303,359.93 × 300,357.18
  4. Step 4: Simplify right side
    869,119.74x = 391,473,513,099.80
  5. Step 5: Solve for x
    x = 391,473,513,099.80/869,119.74
  6. Step 6: Final answer
    x = 450,425.29

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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.