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Finding the Fourth Proportional to 708,234.60, 977,363.80 and 385,944.60

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Solution

The fourth proportional to 708,234.60, 977,363.80 and 385,944.60 is: 532,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,234.60 : 977,363.80 = 385,944.60 : x
  2. Step 2: Convert to fraction form
    708,234.60/977,363.80 = 385,944.60/x
  3. Step 3: Cross multiply
    708,234.60x = 977,363.80 × 385,944.60
  4. Step 4: Simplify right side
    708,234.60x = 377,208,280,845.48
  5. Step 5: Solve for x
    x = 377,208,280,845.48/708,234.60
  6. Step 6: Final answer
    x = 532,603.58

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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.