Home / 918,253.36-1,377,459.24-253,405.36

Finding the Fourth Proportional to 918,253.36, 1,377,459.24 and 253,405.36

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Solution

The fourth proportional to 918,253.36, 1,377,459.24 and 253,405.36 is: 380,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,253.36 : 1,377,459.24 = 253,405.36 : x
  2. Step 2: Convert to fraction form
    918,253.36/1,377,459.24 = 253,405.36/x
  3. Step 3: Cross multiply
    918,253.36x = 1,377,459.24 × 253,405.36
  4. Step 4: Simplify right side
    918,253.36x = 349,055,554,597.53
  5. Step 5: Solve for x
    x = 349,055,554,597.53/918,253.36
  6. Step 6: Final answer
    x = 380,129.90

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Double scale
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Similar ratio
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1.5x scale

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.