Home / 758,880.80-1,047,255.89-419,349.05

Finding the Fourth Proportional to 758,880.80, 1,047,255.89 and 419,349.05

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Solution

The fourth proportional to 758,880.80, 1,047,255.89 and 419,349.05 is: 578,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,880.80 : 1,047,255.89 = 419,349.05 : x
  2. Step 2: Convert to fraction form
    758,880.80/1,047,255.89 = 419,349.05/x
  3. Step 3: Cross multiply
    758,880.80x = 1,047,255.89 × 419,349.05
  4. Step 4: Simplify right side
    758,880.80x = 439,165,759,172.59
  5. Step 5: Solve for x
    x = 439,165,759,172.59/758,880.80
  6. Step 6: Final answer
    x = 578,701.90

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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.