Home / 702,021.60-1,053,032.40-489,445.20

Finding the Fourth Proportional to 702,021.60, 1,053,032.40 and 489,445.20

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Solution

The fourth proportional to 702,021.60, 1,053,032.40 and 489,445.20 is: 734,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,021.60 : 1,053,032.40 = 489,445.20 : x
  2. Step 2: Convert to fraction form
    702,021.60/1,053,032.40 = 489,445.20/x
  3. Step 3: Cross multiply
    702,021.60x = 1,053,032.40 × 489,445.20
  4. Step 4: Simplify right side
    702,021.60x = 515,401,653,624.48
  5. Step 5: Solve for x
    x = 515,401,653,624.48/702,021.60
  6. Step 6: Final answer
    x = 734,167.80

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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.