Home / 400,995.63-602,434.02-378,298.22

Finding the Fourth Proportional to 400,995.63, 602,434.02 and 378,298.22

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Solution

The fourth proportional to 400,995.63, 602,434.02 and 378,298.22 is: 568,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,995.63 : 602,434.02 = 378,298.22 : x
  2. Step 2: Convert to fraction form
    400,995.63/602,434.02 = 378,298.22/x
  3. Step 3: Cross multiply
    400,995.63x = 602,434.02 × 378,298.22
  4. Step 4: Simplify right side
    400,995.63x = 227,899,714,421.27
  5. Step 5: Solve for x
    x = 227,899,714,421.27/400,995.63
  6. Step 6: Final answer
    x = 568,334.66

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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.