Home / 1,102,310.08-1,653,038.65-428,302.65

Finding the Fourth Proportional to 1,102,310.08, 1,653,038.65 and 428,302.65

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Solution

The fourth proportional to 1,102,310.08, 1,653,038.65 and 428,302.65 is: 642,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,310.08 : 1,653,038.65 = 428,302.65 : x
  2. Step 2: Convert to fraction form
    1,102,310.08/1,653,038.65 = 428,302.65/x
  3. Step 3: Cross multiply
    1,102,310.08x = 1,653,038.65 × 428,302.65
  4. Step 4: Simplify right side
    1,102,310.08x = 708,000,835,011.40
  5. Step 5: Solve for x
    x = 708,000,835,011.40/1,102,310.08
  6. Step 6: Final answer
    x = 642,288.27

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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.