Home / 784,493.20-1,176,156.60-429,907.60

Finding the Fourth Proportional to 784,493.20, 1,176,156.60 and 429,907.60

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Solution

The fourth proportional to 784,493.20, 1,176,156.60 and 429,907.60 is: 644,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,493.20 : 1,176,156.60 = 429,907.60 : x
  2. Step 2: Convert to fraction form
    784,493.20/1,176,156.60 = 429,907.60/x
  3. Step 3: Cross multiply
    784,493.20x = 1,176,156.60 × 429,907.60
  4. Step 4: Simplify right side
    784,493.20x = 505,638,661,130.16
  5. Step 5: Solve for x
    x = 505,638,661,130.16/784,493.20
  6. Step 6: Final answer
    x = 644,541.80

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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.