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Finding the Fourth Proportional to 627,262.06, 865,559.10 and 355,275.64

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Solution

The fourth proportional to 627,262.06, 865,559.10 and 355,275.64 is: 490,244.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,262.06 : 865,559.10 = 355,275.64 : x
  2. Step 2: Convert to fraction form
    627,262.06/865,559.10 = 355,275.64/x
  3. Step 3: Cross multiply
    627,262.06x = 865,559.10 × 355,275.64
  4. Step 4: Simplify right side
    627,262.06x = 307,512,063,210.32
  5. Step 5: Solve for x
    x = 307,512,063,210.32/627,262.06
  6. Step 6: Final answer
    x = 490,244.96

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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.