Home / 763,322.10-1,053,343.38-423,768.48

Finding the Fourth Proportional to 763,322.10, 1,053,343.38 and 423,768.48

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Solution

The fourth proportional to 763,322.10, 1,053,343.38 and 423,768.48 is: 584,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,322.10 : 1,053,343.38 = 423,768.48 : x
  2. Step 2: Convert to fraction form
    763,322.10/1,053,343.38 = 423,768.48/x
  3. Step 3: Cross multiply
    763,322.10x = 1,053,343.38 × 423,768.48
  4. Step 4: Simplify right side
    763,322.10x = 446,373,723,060.66
  5. Step 5: Solve for x
    x = 446,373,723,060.66/763,322.10
  6. Step 6: Final answer
    x = 584,777.68

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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.