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Finding the Fourth Proportional to 585,021.60, 877,532.40 and 407,728.80

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Solution

The fourth proportional to 585,021.60, 877,532.40 and 407,728.80 is: 611,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,021.60 : 877,532.40 = 407,728.80 : x
  2. Step 2: Convert to fraction form
    585,021.60/877,532.40 = 407,728.80/x
  3. Step 3: Cross multiply
    585,021.60x = 877,532.40 × 407,728.80
  4. Step 4: Simplify right side
    585,021.60x = 357,795,232,413.12
  5. Step 5: Solve for x
    x = 357,795,232,413.12/585,021.60
  6. Step 6: Final answer
    x = 611,593.20

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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.