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Finding the Fourth Proportional to 478,901.64, 660,888.72 and 264,049.32

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Solution

The fourth proportional to 478,901.64, 660,888.72 and 264,049.32 is: 364,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,901.64 : 660,888.72 = 264,049.32 : x
  2. Step 2: Convert to fraction form
    478,901.64/660,888.72 = 264,049.32/x
  3. Step 3: Cross multiply
    478,901.64x = 660,888.72 × 264,049.32
  4. Step 4: Simplify right side
    478,901.64x = 174,507,217,111.67
  5. Step 5: Solve for x
    x = 174,507,217,111.67/478,901.64
  6. Step 6: Final answer
    x = 364,390.52

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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.