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Finding the Fourth Proportional to 636,920.03, 879,000.29 and 365,013.22

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Solution

The fourth proportional to 636,920.03, 879,000.29 and 365,013.22 is: 503,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,920.03 : 879,000.29 = 365,013.22 : x
  2. Step 2: Convert to fraction form
    636,920.03/879,000.29 = 365,013.22/x
  3. Step 3: Cross multiply
    636,920.03x = 879,000.29 × 365,013.22
  4. Step 4: Simplify right side
    636,920.03x = 320,846,730,476.37
  5. Step 5: Solve for x
    x = 320,846,730,476.37/636,920.03
  6. Step 6: Final answer
    x = 503,747.28

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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.