Home / 1,300,643.40-1,950,965.10-354,012.60

Finding the Fourth Proportional to 1,300,643.40, 1,950,965.10 and 354,012.60

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Solution

The fourth proportional to 1,300,643.40, 1,950,965.10 and 354,012.60 is: 531,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,643.40 : 1,950,965.10 = 354,012.60 : x
  2. Step 2: Convert to fraction form
    1,300,643.40/1,950,965.10 = 354,012.60/x
  3. Step 3: Cross multiply
    1,300,643.40x = 1,950,965.10 × 354,012.60
  4. Step 4: Simplify right side
    1,300,643.40x = 690,666,227,560.26
  5. Step 5: Solve for x
    x = 690,666,227,560.26/1,300,643.40
  6. Step 6: Final answer
    x = 531,018.90

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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.