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Finding the Fourth Proportional to 622,502.40, 859,018.08 and 367,877.28

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Solution

The fourth proportional to 622,502.40, 859,018.08 and 367,877.28 is: 507,649.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,502.40 : 859,018.08 = 367,877.28 : x
  2. Step 2: Convert to fraction form
    622,502.40/859,018.08 = 367,877.28/x
  3. Step 3: Cross multiply
    622,502.40x = 859,018.08 × 367,877.28
  4. Step 4: Simplify right side
    622,502.40x = 316,013,234,741.22
  5. Step 5: Solve for x
    x = 316,013,234,741.22/622,502.40
  6. Step 6: Final answer
    x = 507,649.83

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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.