Home / 1,098,792.84-1,515,715.02-639,853.32

Finding the Fourth Proportional to 1,098,792.84, 1,515,715.02 and 639,853.32

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Solution

The fourth proportional to 1,098,792.84, 1,515,715.02 and 639,853.32 is: 882,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,792.84 : 1,515,715.02 = 639,853.32 : x
  2. Step 2: Convert to fraction form
    1,098,792.84/1,515,715.02 = 639,853.32/x
  3. Step 3: Cross multiply
    1,098,792.84x = 1,515,715.02 × 639,853.32
  4. Step 4: Simplify right side
    1,098,792.84x = 969,835,287,720.87
  5. Step 5: Solve for x
    x = 969,835,287,720.87/1,098,792.84
  6. Step 6: Final answer
    x = 882,637.07

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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.