Home / 753,485.13-1,130,242.28-298,064.25

Finding the Fourth Proportional to 753,485.13, 1,130,242.28 and 298,064.25

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Solution

The fourth proportional to 753,485.13, 1,130,242.28 and 298,064.25 is: 447,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,485.13 : 1,130,242.28 = 298,064.25 : x
  2. Step 2: Convert to fraction form
    753,485.13/1,130,242.28 = 298,064.25/x
  3. Step 3: Cross multiply
    753,485.13x = 1,130,242.28 × 298,064.25
  4. Step 4: Simplify right side
    753,485.13x = 336,884,816,016.17
  5. Step 5: Solve for x
    x = 336,884,816,016.17/753,485.13
  6. Step 6: Final answer
    x = 447,102.14

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Double scale
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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.