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Finding the Fourth Proportional to 489,683.88, 735,852.60 and 265,210.20

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Solution

The fourth proportional to 489,683.88, 735,852.60 and 265,210.20 is: 398,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,683.88 : 735,852.60 = 265,210.20 : x
  2. Step 2: Convert to fraction form
    489,683.88/735,852.60 = 265,210.20/x
  3. Step 3: Cross multiply
    489,683.88x = 735,852.60 × 265,210.20
  4. Step 4: Simplify right side
    489,683.88x = 195,155,615,216.52
  5. Step 5: Solve for x
    x = 195,155,615,216.52/489,683.88
  6. Step 6: Final answer
    x = 398,533.88

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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.