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Finding the Fourth Proportional to 479,381.13, 661,526.62 and 264,518.40

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Solution

The fourth proportional to 479,381.13, 661,526.62 and 264,518.40 is: 365,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,381.13 : 661,526.62 = 264,518.40 : x
  2. Step 2: Convert to fraction form
    479,381.13/661,526.62 = 264,518.40/x
  3. Step 3: Cross multiply
    479,381.13x = 661,526.62 × 264,518.40
  4. Step 4: Simplify right side
    479,381.13x = 174,985,962,418.51
  5. Step 5: Solve for x
    x = 174,985,962,418.51/479,381.13
  6. Step 6: Final answer
    x = 365,024.72

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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.