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Finding the Fourth Proportional to 489,881.76, 734,488.56 and 249,404.64

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Solution

The fourth proportional to 489,881.76, 734,488.56 and 249,404.64 is: 373,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,881.76 : 734,488.56 = 249,404.64 : x
  2. Step 2: Convert to fraction form
    489,881.76/734,488.56 = 249,404.64/x
  3. Step 3: Cross multiply
    489,881.76x = 734,488.56 × 249,404.64
  4. Step 4: Simplify right side
    489,881.76x = 183,184,854,890.92
  5. Step 5: Solve for x
    x = 183,184,854,890.92/489,881.76
  6. Step 6: Final answer
    x = 373,936.88

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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.