Home / 908,090.38-1,253,054.99-520,885.74

Finding the Fourth Proportional to 908,090.38, 1,253,054.99 and 520,885.74

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Solution

The fourth proportional to 908,090.38, 1,253,054.99 and 520,885.74 is: 718,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,090.38 : 1,253,054.99 = 520,885.74 : x
  2. Step 2: Convert to fraction form
    908,090.38/1,253,054.99 = 520,885.74/x
  3. Step 3: Cross multiply
    908,090.38x = 1,253,054.99 × 520,885.74
  4. Step 4: Simplify right side
    908,090.38x = 652,698,475,726.84
  5. Step 5: Solve for x
    x = 652,698,475,726.84/908,090.38
  6. Step 6: Final answer
    x = 718,759.38

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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.