Home / 789,846.48-1,182,312.72-429,115.32

Finding the Fourth Proportional to 789,846.48, 1,182,312.72 and 429,115.32

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Solution

The fourth proportional to 789,846.48, 1,182,312.72 and 429,115.32 is: 642,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,846.48 : 1,182,312.72 = 429,115.32 : x
  2. Step 2: Convert to fraction form
    789,846.48/1,182,312.72 = 429,115.32/x
  3. Step 3: Cross multiply
    789,846.48x = 1,182,312.72 × 429,115.32
  4. Step 4: Simplify right side
    789,846.48x = 507,348,501,182.87
  5. Step 5: Solve for x
    x = 507,348,501,182.87/789,846.48
  6. Step 6: Final answer
    x = 642,338.12

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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.