Home / 1,095,117.30-1,641,898.35-420,938.10

Finding the Fourth Proportional to 1,095,117.30, 1,641,898.35 and 420,938.10

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Solution

The fourth proportional to 1,095,117.30, 1,641,898.35 and 420,938.10 is: 631,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,117.30 : 1,641,898.35 = 420,938.10 : x
  2. Step 2: Convert to fraction form
    1,095,117.30/1,641,898.35 = 420,938.10/x
  3. Step 3: Cross multiply
    1,095,117.30x = 1,641,898.35 × 420,938.10
  4. Step 4: Simplify right side
    1,095,117.30x = 691,137,571,842.14
  5. Step 5: Solve for x
    x = 691,137,571,842.14/1,095,117.30
  6. Step 6: Final answer
    x = 631,108.26

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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.