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Finding the Fourth Proportional to 668,460.48, 1,003,098.96 and 289,482.48

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Solution

The fourth proportional to 668,460.48, 1,003,098.96 and 289,482.48 is: 434,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,460.48 : 1,003,098.96 = 289,482.48 : x
  2. Step 2: Convert to fraction form
    668,460.48/1,003,098.96 = 289,482.48/x
  3. Step 3: Cross multiply
    668,460.48x = 1,003,098.96 × 289,482.48
  4. Step 4: Simplify right side
    668,460.48x = 290,379,574,626.22
  5. Step 5: Solve for x
    x = 290,379,574,626.22/668,460.48
  6. Step 6: Final answer
    x = 434,400.51

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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.