Home / 1,100,859.40-1,650,900.30-390,910.60

Finding the Fourth Proportional to 1,100,859.40, 1,650,900.30 and 390,910.60

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Solution

The fourth proportional to 1,100,859.40, 1,650,900.30 and 390,910.60 is: 586,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,859.40 : 1,650,900.30 = 390,910.60 : x
  2. Step 2: Convert to fraction form
    1,100,859.40/1,650,900.30 = 390,910.60/x
  3. Step 3: Cross multiply
    1,100,859.40x = 1,650,900.30 × 390,910.60
  4. Step 4: Simplify right side
    1,100,859.40x = 645,354,426,813.18
  5. Step 5: Solve for x
    x = 645,354,426,813.18/1,100,859.40
  6. Step 6: Final answer
    x = 586,227.84

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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.