Home / 690,830.85-1,036,246.28-410,203.65

Finding the Fourth Proportional to 690,830.85, 1,036,246.28 and 410,203.65

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Solution

The fourth proportional to 690,830.85, 1,036,246.28 and 410,203.65 is: 615,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,830.85 : 1,036,246.28 = 410,203.65 : x
  2. Step 2: Convert to fraction form
    690,830.85/1,036,246.28 = 410,203.65/x
  3. Step 3: Cross multiply
    690,830.85x = 1,036,246.28 × 410,203.65
  4. Step 4: Simplify right side
    690,830.85x = 425,072,006,354.92
  5. Step 5: Solve for x
    x = 425,072,006,354.92/690,830.85
  6. Step 6: Final answer
    x = 615,305.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.