Home / 1,210,809.88-1,670,855.88-666,933.94

Finding the Fourth Proportional to 1,210,809.88, 1,670,855.88 and 666,933.94

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Solution

The fourth proportional to 1,210,809.88, 1,670,855.88 and 666,933.94 is: 920,334.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809.88 : 1,670,855.88 = 666,933.94 : x
  2. Step 2: Convert to fraction form
    1,210,809.88/1,670,855.88 = 666,933.94/x
  3. Step 3: Cross multiply
    1,210,809.88x = 1,670,855.88 × 666,933.94
  4. Step 4: Simplify right side
    1,210,809.88x = 1,114,350,495,220.57
  5. Step 5: Solve for x
    x = 1,114,350,495,220.57/1,210,809.88
  6. Step 6: Final answer
    x = 920,334.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.