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Finding the Fourth Proportional to 478,977.63, 660,974.99 and 264,117.64

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Solution

The fourth proportional to 478,977.63, 660,974.99 and 264,117.64 is: 364,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,977.63 : 660,974.99 = 264,117.64 : x
  2. Step 2: Convert to fraction form
    478,977.63/660,974.99 = 264,117.64/x
  3. Step 3: Cross multiply
    478,977.63x = 660,974.99 × 264,117.64
  4. Step 4: Simplify right side
    478,977.63x = 174,575,154,457.82
  5. Step 5: Solve for x
    x = 174,575,154,457.82/478,977.63
  6. Step 6: Final answer
    x = 364,474.55

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1.5x scale

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.