Home / 863,490.60-1,293,486.30-489,076.20

Finding the Fourth Proportional to 863,490.60, 1,293,486.30 and 489,076.20

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Solution

The fourth proportional to 863,490.60, 1,293,486.30 and 489,076.20 is: 732,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,490.60 : 1,293,486.30 = 489,076.20 : x
  2. Step 2: Convert to fraction form
    863,490.60/1,293,486.30 = 489,076.20/x
  3. Step 3: Cross multiply
    863,490.60x = 1,293,486.30 × 489,076.20
  4. Step 4: Simplify right side
    863,490.60x = 632,613,364,356.06
  5. Step 5: Solve for x
    x = 632,613,364,356.06/863,490.60
  6. Step 6: Final answer
    x = 732,623.34

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1.5x scale

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.