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Finding the Fourth Proportional to 708,291.66, 977,413.97 and 385,994.85

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Solution

The fourth proportional to 708,291.66, 977,413.97 and 385,994.85 is: 532,657.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,291.66 : 977,413.97 = 385,994.85 : x
  2. Step 2: Convert to fraction form
    708,291.66/977,413.97 = 385,994.85/x
  3. Step 3: Cross multiply
    708,291.66x = 977,413.97 × 385,994.85
  4. Step 4: Simplify right side
    708,291.66x = 377,276,756,037.74
  5. Step 5: Solve for x
    x = 377,276,756,037.74/708,291.66
  6. Step 6: Final answer
    x = 532,657.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.