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Finding the Fourth Proportional to 402,482.57, 603,744.53 and 102,965.74

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Solution

The fourth proportional to 402,482.57, 603,744.53 and 102,965.74 is: 154,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,482.57 : 603,744.53 = 102,965.74 : x
  2. Step 2: Convert to fraction form
    402,482.57/603,744.53 = 102,965.74/x
  3. Step 3: Cross multiply
    402,482.57x = 603,744.53 × 102,965.74
  4. Step 4: Simplify right side
    402,482.57x = 62,165,003,554.35
  5. Step 5: Solve for x
    x = 62,165,003,554.35/402,482.57
  6. Step 6: Final answer
    x = 154,453.90

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1.5x scale

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.