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Finding the Fourth Proportional to 559,688.94, 772,388.76 and 317,967.12

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Solution

The fourth proportional to 559,688.94, 772,388.76 and 317,967.12 is: 438,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,688.94 : 772,388.76 = 317,967.12 : x
  2. Step 2: Convert to fraction form
    559,688.94/772,388.76 = 317,967.12/x
  3. Step 3: Cross multiply
    559,688.94x = 772,388.76 × 317,967.12
  4. Step 4: Simplify right side
    559,688.94x = 245,594,229,537.57
  5. Step 5: Solve for x
    x = 245,594,229,537.57/559,688.94
  6. Step 6: Final answer
    x = 438,804.86

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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.