Home / 1,056,005.40-1,581,857.70-655,416.60

Finding the Fourth Proportional to 1,056,005.40, 1,581,857.70 and 655,416.60

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Solution

The fourth proportional to 1,056,005.40, 1,581,857.70 and 655,416.60 is: 981,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,005.40 : 1,581,857.70 = 655,416.60 : x
  2. Step 2: Convert to fraction form
    1,056,005.40/1,581,857.70 = 655,416.60/x
  3. Step 3: Cross multiply
    1,056,005.40x = 1,581,857.70 × 655,416.60
  4. Step 4: Simplify right side
    1,056,005.40x = 1,036,775,795,417.82
  5. Step 5: Solve for x
    x = 1,036,775,795,417.82/1,056,005.40
  6. Step 6: Final answer
    x = 981,790.24

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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.