Home / 908,218.50-1,253,341.56-505,810.50

Finding the Fourth Proportional to 908,218.50, 1,253,341.56 and 505,810.50

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Solution

The fourth proportional to 908,218.50, 1,253,341.56 and 505,810.50 is: 698,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,218.50 : 1,253,341.56 = 505,810.50 : x
  2. Step 2: Convert to fraction form
    908,218.50/1,253,341.56 = 505,810.50/x
  3. Step 3: Cross multiply
    908,218.50x = 1,253,341.56 × 505,810.50
  4. Step 4: Simplify right side
    908,218.50x = 633,953,321,134.38
  5. Step 5: Solve for x
    x = 633,953,321,134.38/908,218.50
  6. Step 6: Final answer
    x = 698,018.51

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Double scale
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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.