Home / 772,153.84-1,158,548.22-339,648.62

Finding the Fourth Proportional to 772,153.84, 1,158,548.22 and 339,648.62

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Solution

The fourth proportional to 772,153.84, 1,158,548.22 and 339,648.62 is: 509,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,153.84 : 1,158,548.22 = 339,648.62 : x
  2. Step 2: Convert to fraction form
    772,153.84/1,158,548.22 = 339,648.62/x
  3. Step 3: Cross multiply
    772,153.84x = 1,158,548.22 × 339,648.62
  4. Step 4: Simplify right side
    772,153.84x = 393,499,307,435.02
  5. Step 5: Solve for x
    x = 393,499,307,435.02/772,153.84
  6. Step 6: Final answer
    x = 509,612.57

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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.