Home / 563,764.86-778,017.96-309,125.16

Finding the Fourth Proportional to 563,764.86, 778,017.96 and 309,125.16

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Solution

The fourth proportional to 563,764.86, 778,017.96 and 309,125.16 is: 426,605.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,764.86 : 778,017.96 = 309,125.16 : x
  2. Step 2: Convert to fraction form
    563,764.86/778,017.96 = 309,125.16/x
  3. Step 3: Cross multiply
    563,764.86x = 778,017.96 × 309,125.16
  4. Step 4: Simplify right side
    563,764.86x = 240,504,926,367.87
  5. Step 5: Solve for x
    x = 240,504,926,367.87/563,764.86
  6. Step 6: Final answer
    x = 426,605.03

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1.5x scale

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.