Home / 783,421.98-1,175,237.54-309,996.62

Finding the Fourth Proportional to 783,421.98, 1,175,237.54 and 309,996.62

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Solution

The fourth proportional to 783,421.98, 1,175,237.54 and 309,996.62 is: 465,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,421.98 : 1,175,237.54 = 309,996.62 : x
  2. Step 2: Convert to fraction form
    783,421.98/1,175,237.54 = 309,996.62/x
  3. Step 3: Cross multiply
    783,421.98x = 1,175,237.54 × 309,996.62
  4. Step 4: Simplify right side
    783,421.98x = 364,319,663,240.57
  5. Step 5: Solve for x
    x = 364,319,663,240.57/783,421.98
  6. Step 6: Final answer
    x = 465,036.31

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Double scale
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1.5x scale

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.