Home / 985,090.19-1,359,426.25-555,369.28

Finding the Fourth Proportional to 985,090.19, 1,359,426.25 and 555,369.28

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Solution

The fourth proportional to 985,090.19, 1,359,426.25 and 555,369.28 is: 766,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,090.19 : 1,359,426.25 = 555,369.28 : x
  2. Step 2: Convert to fraction form
    985,090.19/1,359,426.25 = 555,369.28/x
  3. Step 3: Cross multiply
    985,090.19x = 1,359,426.25 × 555,369.28
  4. Step 4: Simplify right side
    985,090.19x = 754,983,576,287.18
  5. Step 5: Solve for x
    x = 754,983,576,287.18/985,090.19
  6. Step 6: Final answer
    x = 766,410.61

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.