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Finding the Fourth Proportional to 525,855.42, 789,483.66 and 355,648.77

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Solution

The fourth proportional to 525,855.42, 789,483.66 and 355,648.77 is: 533,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,855.42 : 789,483.66 = 355,648.77 : x
  2. Step 2: Convert to fraction form
    525,855.42/789,483.66 = 355,648.77/x
  3. Step 3: Cross multiply
    525,855.42x = 789,483.66 × 355,648.77
  4. Step 4: Simplify right side
    525,855.42x = 280,778,892,614.10
  5. Step 5: Solve for x
    x = 280,778,892,614.10/525,855.42
  6. Step 6: Final answer
    x = 533,946.94

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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.