Home / 563,838.50-778,048.99-318,811.24

Finding the Fourth Proportional to 563,838.50, 778,048.99 and 318,811.24

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Solution

The fourth proportional to 563,838.50, 778,048.99 and 318,811.24 is: 439,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,838.50 : 778,048.99 = 318,811.24 : x
  2. Step 2: Convert to fraction form
    563,838.50/778,048.99 = 318,811.24/x
  3. Step 3: Cross multiply
    563,838.50x = 778,048.99 × 318,811.24
  4. Step 4: Simplify right side
    563,838.50x = 248,050,763,458.18
  5. Step 5: Solve for x
    x = 248,050,763,458.18/563,838.50
  6. Step 6: Final answer
    x = 439,932.29

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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.