Home / 668,870.60-1,003,633.86-313,913.48

Finding the Fourth Proportional to 668,870.60, 1,003,633.86 and 313,913.48

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Solution

The fourth proportional to 668,870.60, 1,003,633.86 and 313,913.48 is: 471,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,870.60 : 1,003,633.86 = 313,913.48 : x
  2. Step 2: Convert to fraction form
    668,870.60/1,003,633.86 = 313,913.48/x
  3. Step 3: Cross multiply
    668,870.60x = 1,003,633.86 × 313,913.48
  4. Step 4: Simplify right side
    668,870.60x = 315,054,197,638.43
  5. Step 5: Solve for x
    x = 315,054,197,638.43/668,870.60
  6. Step 6: Final answer
    x = 471,024.14

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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.