Home / 851,050.53-1,276,867.40-290,478.69

Finding the Fourth Proportional to 851,050.53, 1,276,867.40 and 290,478.69

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Solution

The fourth proportional to 851,050.53, 1,276,867.40 and 290,478.69 is: 435,817.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,050.53 : 1,276,867.40 = 290,478.69 : x
  2. Step 2: Convert to fraction form
    851,050.53/1,276,867.40 = 290,478.69/x
  3. Step 3: Cross multiply
    851,050.53x = 1,276,867.40 × 290,478.69
  4. Step 4: Simplify right side
    851,050.53x = 370,902,768,203.31
  5. Step 5: Solve for x
    x = 370,902,768,203.31/851,050.53
  6. Step 6: Final answer
    x = 435,817.56

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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.