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Finding the Fourth Proportional to 540,639.10, 746,054.31 and 302,175.10

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Solution

The fourth proportional to 540,639.10, 746,054.31 and 302,175.10 is: 416,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,639.10 : 746,054.31 = 302,175.10 : x
  2. Step 2: Convert to fraction form
    540,639.10/746,054.31 = 302,175.10/x
  3. Step 3: Cross multiply
    540,639.10x = 746,054.31 × 302,175.10
  4. Step 4: Simplify right side
    540,639.10x = 225,439,035,729.68
  5. Step 5: Solve for x
    x = 225,439,035,729.68/540,639.10
  6. Step 6: Final answer
    x = 416,986.18

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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.