Home / 763,321.78-1,053,342.94-423,768.16

Finding the Fourth Proportional to 763,321.78, 1,053,342.94 and 423,768.16

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Solution

The fourth proportional to 763,321.78, 1,053,342.94 and 423,768.16 is: 584,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,321.78 : 1,053,342.94 = 423,768.16 : x
  2. Step 2: Convert to fraction form
    763,321.78/1,053,342.94 = 423,768.16/x
  3. Step 3: Cross multiply
    763,321.78x = 1,053,342.94 × 423,768.16
  4. Step 4: Simplify right side
    763,321.78x = 446,373,199,532.79
  5. Step 5: Solve for x
    x = 446,373,199,532.79/763,321.78
  6. Step 6: Final answer
    x = 584,777.23

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1.5x scale

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.