Home / 685,931.40-1,028,897.10-496,974.60

Finding the Fourth Proportional to 685,931.40, 1,028,897.10 and 496,974.60

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Solution

The fourth proportional to 685,931.40, 1,028,897.10 and 496,974.60 is: 745,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,931.40 : 1,028,897.10 = 496,974.60 : x
  2. Step 2: Convert to fraction form
    685,931.40/1,028,897.10 = 496,974.60/x
  3. Step 3: Cross multiply
    685,931.40x = 1,028,897.10 × 496,974.60
  4. Step 4: Simplify right side
    685,931.40x = 511,335,724,713.66
  5. Step 5: Solve for x
    x = 511,335,724,713.66/685,931.40
  6. Step 6: Final answer
    x = 745,461.90

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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.