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Finding the Fourth Proportional to 384,864.80, 577,880.40 and 296,218.40

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Solution

The fourth proportional to 384,864.80, 577,880.40 and 296,218.40 is: 444,776.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,864.80 : 577,880.40 = 296,218.40 : x
  2. Step 2: Convert to fraction form
    384,864.80/577,880.40 = 296,218.40/x
  3. Step 3: Cross multiply
    384,864.80x = 577,880.40 × 296,218.40
  4. Step 4: Simplify right side
    384,864.80x = 171,178,807,479.36
  5. Step 5: Solve for x
    x = 171,178,807,479.36/384,864.80
  6. Step 6: Final answer
    x = 444,776.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.