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Finding the Fourth Proportional to 584,740.80, 877,111.20 and 285,413.40

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Solution

The fourth proportional to 584,740.80, 877,111.20 and 285,413.40 is: 428,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,740.80 : 877,111.20 = 285,413.40 : x
  2. Step 2: Convert to fraction form
    584,740.80/877,111.20 = 285,413.40/x
  3. Step 3: Cross multiply
    584,740.80x = 877,111.20 × 285,413.40
  4. Step 4: Simplify right side
    584,740.80x = 250,339,289,770.08
  5. Step 5: Solve for x
    x = 250,339,289,770.08/584,740.80
  6. Step 6: Final answer
    x = 428,120.10

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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.