Home / 513,320.10-771,292.35-455,583.30

Finding the Fourth Proportional to 513,320.10, 771,292.35 and 455,583.30

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Solution

The fourth proportional to 513,320.10, 771,292.35 and 455,583.30 is: 684,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,320.10 : 771,292.35 = 455,583.30 : x
  2. Step 2: Convert to fraction form
    513,320.10/771,292.35 = 455,583.30/x
  3. Step 3: Cross multiply
    513,320.10x = 771,292.35 × 455,583.30
  4. Step 4: Simplify right side
    513,320.10x = 351,387,914,077.76
  5. Step 5: Solve for x
    x = 351,387,914,077.76/513,320.10
  6. Step 6: Final answer
    x = 684,539.56

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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.