Home / 551,784.96-828,256.59-489,006.72

Finding the Fourth Proportional to 551,784.96, 828,256.59 and 489,006.72

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Solution

The fourth proportional to 551,784.96, 828,256.59 and 489,006.72 is: 734,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,784.96 : 828,256.59 = 489,006.72 : x
  2. Step 2: Convert to fraction form
    551,784.96/828,256.59 = 489,006.72/x
  3. Step 3: Cross multiply
    551,784.96x = 828,256.59 × 489,006.72
  4. Step 4: Simplify right side
    551,784.96x = 405,023,038,394.29
  5. Step 5: Solve for x
    x = 405,023,038,394.29/551,784.96
  6. Step 6: Final answer
    x = 734,023.34

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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.