Home / 1,147,128-1,582,961.76-637,812.16

Finding the Fourth Proportional to 1,147,128, 1,582,961.76 and 637,812.16

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Solution

The fourth proportional to 1,147,128, 1,582,961.76 and 637,812.16 is: 880,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,128 : 1,582,961.76 = 637,812.16 : x
  2. Step 2: Convert to fraction form
    1,147,128/1,582,961.76 = 637,812.16/x
  3. Step 3: Cross multiply
    1,147,128x = 1,582,961.76 × 637,812.16
  4. Step 4: Simplify right side
    1,147,128x = 1,009,632,259,343.00
  5. Step 5: Solve for x
    x = 1,009,632,259,343.00/1,147,128
  6. Step 6: Final answer
    x = 880,139.15

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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.