Home / 563,928.48-778,233.42-309,279.06

Finding the Fourth Proportional to 563,928.48, 778,233.42 and 309,279.06

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Solution

The fourth proportional to 563,928.48, 778,233.42 and 309,279.06 is: 426,811.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,928.48 : 778,233.42 = 309,279.06 : x
  2. Step 2: Convert to fraction form
    563,928.48/778,233.42 = 309,279.06/x
  3. Step 3: Cross multiply
    563,928.48x = 778,233.42 × 309,279.06
  4. Step 4: Simplify right side
    563,928.48x = 240,691,300,598.19
  5. Step 5: Solve for x
    x = 240,691,300,598.19/563,928.48
  6. Step 6: Final answer
    x = 426,811.75

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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.