Home / 1,140,425.64-1,573,836.82-631,128.20

Finding the Fourth Proportional to 1,140,425.64, 1,573,836.82 and 631,128.20

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Solution

The fourth proportional to 1,140,425.64, 1,573,836.82 and 631,128.20 is: 870,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,425.64 : 1,573,836.82 = 631,128.20 : x
  2. Step 2: Convert to fraction form
    1,140,425.64/1,573,836.82 = 631,128.20/x
  3. Step 3: Cross multiply
    1,140,425.64x = 1,573,836.82 × 631,128.20
  4. Step 4: Simplify right side
    1,140,425.64x = 993,292,799,300.32
  5. Step 5: Solve for x
    x = 993,292,799,300.32/1,140,425.64
  6. Step 6: Final answer
    x = 870,984.28

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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.