Home / 738,845.14-1,019,120.60-509,412.10

Finding the Fourth Proportional to 738,845.14, 1,019,120.60 and 509,412.10

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Solution

The fourth proportional to 738,845.14, 1,019,120.60 and 509,412.10 is: 702,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,845.14 : 1,019,120.60 = 509,412.10 : x
  2. Step 2: Convert to fraction form
    738,845.14/1,019,120.60 = 509,412.10/x
  3. Step 3: Cross multiply
    738,845.14x = 1,019,120.60 × 509,412.10
  4. Step 4: Simplify right side
    738,845.14x = 519,152,364,999.26
  5. Step 5: Solve for x
    x = 519,152,364,999.26/738,845.14
  6. Step 6: Final answer
    x = 702,653.83

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1.5x scale

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.