Home / 663,457.34-915,566.33-376,977.42

Finding the Fourth Proportional to 663,457.34, 915,566.33 and 376,977.42

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Solution

The fourth proportional to 663,457.34, 915,566.33 and 376,977.42 is: 520,226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,457.34 : 915,566.33 = 376,977.42 : x
  2. Step 2: Convert to fraction form
    663,457.34/915,566.33 = 376,977.42/x
  3. Step 3: Cross multiply
    663,457.34x = 915,566.33 × 376,977.42
  4. Step 4: Simplify right side
    663,457.34x = 345,147,833,864.71
  5. Step 5: Solve for x
    x = 345,147,833,864.71/663,457.34
  6. Step 6: Final answer
    x = 520,226.12

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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.