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Finding the Fourth Proportional to 489,103.60, 733,655.40 and 355,259.20

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Solution

The fourth proportional to 489,103.60, 733,655.40 and 355,259.20 is: 532,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,103.60 : 733,655.40 = 355,259.20 : x
  2. Step 2: Convert to fraction form
    489,103.60/733,655.40 = 355,259.20/x
  3. Step 3: Cross multiply
    489,103.60x = 733,655.40 × 355,259.20
  4. Step 4: Simplify right side
    489,103.60x = 260,637,830,479.68
  5. Step 5: Solve for x
    x = 260,637,830,479.68/489,103.60
  6. Step 6: Final answer
    x = 532,888.80

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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.