Home / 851,045.80-1,276,568.70-768,101.80

Finding the Fourth Proportional to 851,045.80, 1,276,568.70 and 768,101.80

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Solution

The fourth proportional to 851,045.80, 1,276,568.70 and 768,101.80 is: 1,152,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,045.80 : 1,276,568.70 = 768,101.80 : x
  2. Step 2: Convert to fraction form
    851,045.80/1,276,568.70 = 768,101.80/x
  3. Step 3: Cross multiply
    851,045.80x = 1,276,568.70 × 768,101.80
  4. Step 4: Simplify right side
    851,045.80x = 980,534,716,293.66
  5. Step 5: Solve for x
    x = 980,534,716,293.66/851,045.80
  6. Step 6: Final answer
    x = 1,152,152.70

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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.