Home / 384,784.20-577,176.30-340,497.45

Finding the Fourth Proportional to 384,784.20, 577,176.30 and 340,497.45

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Solution

The fourth proportional to 384,784.20, 577,176.30 and 340,497.45 is: 510,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,784.20 : 577,176.30 = 340,497.45 : x
  2. Step 2: Convert to fraction form
    384,784.20/577,176.30 = 340,497.45/x
  3. Step 3: Cross multiply
    384,784.20x = 577,176.30 × 340,497.45
  4. Step 4: Simplify right side
    384,784.20x = 196,527,058,350.44
  5. Step 5: Solve for x
    x = 196,527,058,350.44/384,784.20
  6. Step 6: Final answer
    x = 510,746.18

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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.