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Finding the Fourth Proportional to 489,151.60, 733,727.40 and 355,307.20

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Solution

The fourth proportional to 489,151.60, 733,727.40 and 355,307.20 is: 532,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,151.60 : 733,727.40 = 355,307.20 : x
  2. Step 2: Convert to fraction form
    489,151.60/733,727.40 = 355,307.20/x
  3. Step 3: Cross multiply
    489,151.60x = 733,727.40 × 355,307.20
  4. Step 4: Simplify right side
    489,151.60x = 260,698,628,057.28
  5. Step 5: Solve for x
    x = 260,698,628,057.28/489,151.60
  6. Step 6: Final answer
    x = 532,960.80

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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.