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Finding the Fourth Proportional to 375,320.98, 562,744.95 and 318,414.77

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Solution

The fourth proportional to 375,320.98, 562,744.95 and 318,414.77 is: 477,421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,320.98 : 562,744.95 = 318,414.77 : x
  2. Step 2: Convert to fraction form
    375,320.98/562,744.95 = 318,414.77/x
  3. Step 3: Cross multiply
    375,320.98x = 562,744.95 × 318,414.77
  4. Step 4: Simplify right side
    375,320.98x = 179,186,303,822.91
  5. Step 5: Solve for x
    x = 179,186,303,822.91/375,320.98
  6. Step 6: Final answer
    x = 477,421.50

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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.