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Finding the Fourth Proportional to 478,866.20, 660,865.16 and 264,005.93

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Solution

The fourth proportional to 478,866.20, 660,865.16 and 264,005.93 is: 364,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,866.20 : 660,865.16 = 264,005.93 : x
  2. Step 2: Convert to fraction form
    478,866.20/660,865.16 = 264,005.93/x
  3. Step 3: Cross multiply
    478,866.20x = 660,865.16 × 264,005.93
  4. Step 4: Simplify right side
    478,866.20x = 174,472,323,482.58
  5. Step 5: Solve for x
    x = 174,472,323,482.58/478,866.20
  6. Step 6: Final answer
    x = 364,344.62

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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.