Home / 1,220,178-1,830,420.06-367,116.78

Finding the Fourth Proportional to 1,220,178, 1,830,420.06 and 367,116.78

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Solution

The fourth proportional to 1,220,178, 1,830,420.06 and 367,116.78 is: 550,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,178 : 1,830,420.06 = 367,116.78 : x
  2. Step 2: Convert to fraction form
    1,220,178/1,830,420.06 = 367,116.78/x
  3. Step 3: Cross multiply
    1,220,178x = 1,830,420.06 × 367,116.78
  4. Step 4: Simplify right side
    1,220,178x = 671,977,918,474.61
  5. Step 5: Solve for x
    x = 671,977,918,474.61/1,220,178
  6. Step 6: Final answer
    x = 550,721.22

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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.