Home / 816,005.20-1,224,007.80-760,709.20

Finding the Fourth Proportional to 816,005.20, 1,224,007.80 and 760,709.20

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Solution

The fourth proportional to 816,005.20, 1,224,007.80 and 760,709.20 is: 1,141,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,005.20 : 1,224,007.80 = 760,709.20 : x
  2. Step 2: Convert to fraction form
    816,005.20/1,224,007.80 = 760,709.20/x
  3. Step 3: Cross multiply
    816,005.20x = 1,224,007.80 × 760,709.20
  4. Step 4: Simplify right side
    816,005.20x = 931,113,994,331.76
  5. Step 5: Solve for x
    x = 931,113,994,331.76/816,005.20
  6. Step 6: Final answer
    x = 1,141,063.80

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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.