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Finding the Fourth Proportional to 559,507.67, 838,663.94 and 319,104.01

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Solution

The fourth proportional to 559,507.67, 838,663.94 and 319,104.01 is: 478,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,507.67 : 838,663.94 = 319,104.01 : x
  2. Step 2: Convert to fraction form
    559,507.67/838,663.94 = 319,104.01/x
  3. Step 3: Cross multiply
    559,507.67x = 838,663.94 × 319,104.01
  4. Step 4: Simplify right side
    559,507.67x = 267,621,029,405.26
  5. Step 5: Solve for x
    x = 267,621,029,405.26/559,507.67
  6. Step 6: Final answer
    x = 478,315.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.