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Finding the Fourth Proportional to 526,893.12, 727,130.12 and 322,904.63

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Solution

The fourth proportional to 526,893.12, 727,130.12 and 322,904.63 is: 445,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,893.12 : 727,130.12 = 322,904.63 : x
  2. Step 2: Convert to fraction form
    526,893.12/727,130.12 = 322,904.63/x
  3. Step 3: Cross multiply
    526,893.12x = 727,130.12 × 322,904.63
  4. Step 4: Simplify right side
    526,893.12x = 234,793,678,473.65
  5. Step 5: Solve for x
    x = 234,793,678,473.65/526,893.12
  6. Step 6: Final answer
    x = 445,619.18

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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.