Home / 563,834.52-778,090.86-309,185.64

Finding the Fourth Proportional to 563,834.52, 778,090.86 and 309,185.64

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Solution

The fourth proportional to 563,834.52, 778,090.86 and 309,185.64 is: 426,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,834.52 : 778,090.86 = 309,185.64 : x
  2. Step 2: Convert to fraction form
    563,834.52/778,090.86 = 309,185.64/x
  3. Step 3: Cross multiply
    563,834.52x = 778,090.86 × 309,185.64
  4. Step 4: Simplify right side
    563,834.52x = 240,574,520,527.25
  5. Step 5: Solve for x
    x = 240,574,520,527.25/563,834.52
  6. Step 6: Final answer
    x = 426,675.76

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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.