Home / 626,834.65-865,007.55-340,348.18

Finding the Fourth Proportional to 626,834.65, 865,007.55 and 340,348.18

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Solution

The fourth proportional to 626,834.65, 865,007.55 and 340,348.18 is: 469,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,834.65 : 865,007.55 = 340,348.18 : x
  2. Step 2: Convert to fraction form
    626,834.65/865,007.55 = 340,348.18/x
  3. Step 3: Cross multiply
    626,834.65x = 865,007.55 × 340,348.18
  4. Step 4: Simplify right side
    626,834.65x = 294,403,745,328.76
  5. Step 5: Solve for x
    x = 294,403,745,328.76/626,834.65
  6. Step 6: Final answer
    x = 469,667.31

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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.