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Finding the Fourth Proportional to 550,440.64, 759,824.16 and 369,086.32

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Solution

The fourth proportional to 550,440.64, 759,824.16 and 369,086.32 is: 509,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,440.64 : 759,824.16 = 369,086.32 : x
  2. Step 2: Convert to fraction form
    550,440.64/759,824.16 = 369,086.32/x
  3. Step 3: Cross multiply
    550,440.64x = 759,824.16 × 369,086.32
  4. Step 4: Simplify right side
    550,440.64x = 280,440,703,061.49
  5. Step 5: Solve for x
    x = 280,440,703,061.49/550,440.64
  6. Step 6: Final answer
    x = 509,484.01

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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.