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Finding the Fourth Proportional to 684,952.32, 945,182.88 and 383,088

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Solution

The fourth proportional to 684,952.32, 945,182.88 and 383,088 is: 528,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,952.32 : 945,182.88 = 383,088 : x
  2. Step 2: Convert to fraction form
    684,952.32/945,182.88 = 383,088/x
  3. Step 3: Cross multiply
    684,952.32x = 945,182.88 × 383,088
  4. Step 4: Simplify right side
    684,952.32x = 362,088,219,133.44
  5. Step 5: Solve for x
    x = 362,088,219,133.44/684,952.32
  6. Step 6: Final answer
    x = 528,632.74

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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.