Home / 668,458.20-1,003,313.70-353,141.40

Finding the Fourth Proportional to 668,458.20, 1,003,313.70 and 353,141.40

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Solution

The fourth proportional to 668,458.20, 1,003,313.70 and 353,141.40 is: 530,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,458.20 : 1,003,313.70 = 353,141.40 : x
  2. Step 2: Convert to fraction form
    668,458.20/1,003,313.70 = 353,141.40/x
  3. Step 3: Cross multiply
    668,458.20x = 1,003,313.70 × 353,141.40
  4. Step 4: Simplify right side
    668,458.20x = 354,311,604,657.18
  5. Step 5: Solve for x
    x = 354,311,604,657.18/668,458.20
  6. Step 6: Final answer
    x = 530,043.02

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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.