Home / 1,318,507.12-1,976,587.68-476,871.76

Finding the Fourth Proportional to 1,318,507.12, 1,976,587.68 and 476,871.76

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Solution

The fourth proportional to 1,318,507.12, 1,976,587.68 and 476,871.76 is: 714,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,507.12 : 1,976,587.68 = 476,871.76 : x
  2. Step 2: Convert to fraction form
    1,318,507.12/1,976,587.68 = 476,871.76/x
  3. Step 3: Cross multiply
    1,318,507.12x = 1,976,587.68 × 476,871.76
  4. Step 4: Simplify right side
    1,318,507.12x = 942,578,845,755.92
  5. Step 5: Solve for x
    x = 942,578,845,755.92/1,318,507.12
  6. Step 6: Final answer
    x = 714,883.39

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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.