Home / 1,013,126.86-1,398,126.09-554,231.55

Finding the Fourth Proportional to 1,013,126.86, 1,398,126.09 and 554,231.55

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Solution

The fourth proportional to 1,013,126.86, 1,398,126.09 and 554,231.55 is: 764,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,126.86 : 1,398,126.09 = 554,231.55 : x
  2. Step 2: Convert to fraction form
    1,013,126.86/1,398,126.09 = 554,231.55/x
  3. Step 3: Cross multiply
    1,013,126.86x = 1,398,126.09 × 554,231.55
  4. Step 4: Simplify right side
    1,013,126.86x = 774,885,582,965.51
  5. Step 5: Solve for x
    x = 774,885,582,965.51/1,013,126.86
  6. Step 6: Final answer
    x = 764,845.56

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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.