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Finding the Fourth Proportional to 478,864.32, 660,802.87 and 264,004.39

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Solution

The fourth proportional to 478,864.32, 660,802.87 and 264,004.39 is: 364,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,864.32 : 660,802.87 = 264,004.39 : x
  2. Step 2: Convert to fraction form
    478,864.32/660,802.87 = 264,004.39/x
  3. Step 3: Cross multiply
    478,864.32x = 660,802.87 × 264,004.39
  4. Step 4: Simplify right side
    478,864.32x = 174,454,854,640.57
  5. Step 5: Solve for x
    x = 174,454,854,640.57/478,864.32
  6. Step 6: Final answer
    x = 364,309.57

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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.