Home / 869,078.84-1,303,742.52-329,189.60

Finding the Fourth Proportional to 869,078.84, 1,303,742.52 and 329,189.60

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Solution

The fourth proportional to 869,078.84, 1,303,742.52 and 329,189.60 is: 493,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,078.84 : 1,303,742.52 = 329,189.60 : x
  2. Step 2: Convert to fraction form
    869,078.84/1,303,742.52 = 329,189.60/x
  3. Step 3: Cross multiply
    869,078.84x = 1,303,742.52 × 329,189.60
  4. Step 4: Simplify right side
    869,078.84x = 429,178,478,661.79
  5. Step 5: Solve for x
    x = 429,178,478,661.79/869,078.84
  6. Step 6: Final answer
    x = 493,831.47

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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.