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Finding the Fourth Proportional to 998,576.04, 1,497,240 and 421,902.89

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Solution

The fourth proportional to 998,576.04, 1,497,240 and 421,902.89 is: 632,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,576.04 : 1,497,240 = 421,902.89 : x
  2. Step 2: Convert to fraction form
    998,576.04/1,497,240 = 421,902.89/x
  3. Step 3: Cross multiply
    998,576.04x = 1,497,240 × 421,902.89
  4. Step 4: Simplify right side
    998,576.04x = 631,689,881,152.05
  5. Step 5: Solve for x
    x = 631,689,881,152.05/998,576.04
  6. Step 6: Final answer
    x = 632,590.66

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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.