Home / 908,686.98-1,253,996.73-500,803.62

Finding the Fourth Proportional to 908,686.98, 1,253,996.73 and 500,803.62

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Solution

The fourth proportional to 908,686.98, 1,253,996.73 and 500,803.62 is: 691,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,686.98 : 1,253,996.73 = 500,803.62 : x
  2. Step 2: Convert to fraction form
    908,686.98/1,253,996.73 = 500,803.62/x
  3. Step 3: Cross multiply
    908,686.98x = 1,253,996.73 × 500,803.62
  4. Step 4: Simplify right side
    908,686.98x = 628,006,101,852.16
  5. Step 5: Solve for x
    x = 628,006,101,852.16/908,686.98
  6. Step 6: Final answer
    x = 691,113.79

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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.