Home / 1,543,090.80-2,314,644.30-421,159.80

Finding the Fourth Proportional to 1,543,090.80, 2,314,644.30 and 421,159.80

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Solution

The fourth proportional to 1,543,090.80, 2,314,644.30 and 421,159.80 is: 631,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,090.80 : 2,314,644.30 = 421,159.80 : x
  2. Step 2: Convert to fraction form
    1,543,090.80/2,314,644.30 = 421,159.80/x
  3. Step 3: Cross multiply
    1,543,090.80x = 2,314,644.30 × 421,159.80
  4. Step 4: Simplify right side
    1,543,090.80x = 974,835,130,459.14
  5. Step 5: Solve for x
    x = 974,835,130,459.14/1,543,090.80
  6. Step 6: Final answer
    x = 631,741.91

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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.