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Finding the Fourth Proportional to 478,870.17, 660,845.42 and 264,017.94

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Solution

The fourth proportional to 478,870.17, 660,845.42 and 264,017.94 is: 364,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,870.17 : 660,845.42 = 264,017.94 : x
  2. Step 2: Convert to fraction form
    478,870.17/660,845.42 = 264,017.94/x
  3. Step 3: Cross multiply
    478,870.17x = 660,845.42 × 264,017.94
  4. Step 4: Simplify right side
    478,870.17x = 174,475,046,446.84
  5. Step 5: Solve for x
    x = 174,475,046,446.84/478,870.17
  6. Step 6: Final answer
    x = 364,347.29

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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.