Home / 786,276.42-1,178,551.62-448,580.63

Finding the Fourth Proportional to 786,276.42, 1,178,551.62 and 448,580.63

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Solution

The fourth proportional to 786,276.42, 1,178,551.62 and 448,580.63 is: 672,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,276.42 : 1,178,551.62 = 448,580.63 : x
  2. Step 2: Convert to fraction form
    786,276.42/1,178,551.62 = 448,580.63/x
  3. Step 3: Cross multiply
    786,276.42x = 1,178,551.62 × 448,580.63
  4. Step 4: Simplify right side
    786,276.42x = 528,675,431,133.50
  5. Step 5: Solve for x
    x = 528,675,431,133.50/786,276.42
  6. Step 6: Final answer
    x = 672,378.59

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Double scale
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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.