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Finding the Fourth Proportional to 480,421.30, 662,969.73 and 265,555.84

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Solution

The fourth proportional to 480,421.30, 662,969.73 and 265,555.84 is: 366,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,421.30 : 662,969.73 = 265,555.84 : x
  2. Step 2: Convert to fraction form
    480,421.30/662,969.73 = 265,555.84/x
  3. Step 3: Cross multiply
    480,421.30x = 662,969.73 × 265,555.84
  4. Step 4: Simplify right side
    480,421.30x = 176,055,483,544.72
  5. Step 5: Solve for x
    x = 176,055,483,544.72/480,421.30
  6. Step 6: Final answer
    x = 366,460.61

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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.