Home / 1,313,809.80-1,971,006.30-603,666.60

Finding the Fourth Proportional to 1,313,809.80, 1,971,006.30 and 603,666.60

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Solution

The fourth proportional to 1,313,809.80, 1,971,006.30 and 603,666.60 is: 905,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,809.80 : 1,971,006.30 = 603,666.60 : x
  2. Step 2: Convert to fraction form
    1,313,809.80/1,971,006.30 = 603,666.60/x
  3. Step 3: Cross multiply
    1,313,809.80x = 1,971,006.30 × 603,666.60
  4. Step 4: Simplify right side
    1,313,809.80x = 1,189,830,671,699.58
  5. Step 5: Solve for x
    x = 1,189,830,671,699.58/1,313,809.80
  6. Step 6: Final answer
    x = 905,633.88

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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.