Home / 749,323.12-1,034,063.69-405,156.60

Finding the Fourth Proportional to 749,323.12, 1,034,063.69 and 405,156.60

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Solution

The fourth proportional to 749,323.12, 1,034,063.69 and 405,156.60 is: 559,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,323.12 : 1,034,063.69 = 405,156.60 : x
  2. Step 2: Convert to fraction form
    749,323.12/1,034,063.69 = 405,156.60/x
  3. Step 3: Cross multiply
    749,323.12x = 1,034,063.69 × 405,156.60
  4. Step 4: Simplify right side
    749,323.12x = 418,957,726,798.07
  5. Step 5: Solve for x
    x = 418,957,726,798.07/749,323.12
  6. Step 6: Final answer
    x = 559,114.91

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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.