Home / 369,946.40-554,919.60-120,628.40

Finding the Fourth Proportional to 369,946.40, 554,919.60 and 120,628.40

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Solution

The fourth proportional to 369,946.40, 554,919.60 and 120,628.40 is: 180,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,946.40 : 554,919.60 = 120,628.40 : x
  2. Step 2: Convert to fraction form
    369,946.40/554,919.60 = 120,628.40/x
  3. Step 3: Cross multiply
    369,946.40x = 554,919.60 × 120,628.40
  4. Step 4: Simplify right side
    369,946.40x = 66,939,063,476.64
  5. Step 5: Solve for x
    x = 66,939,063,476.64/369,946.40
  6. Step 6: Final answer
    x = 180,942.60

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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.