Home / 1,108,130.64-1,531,802.56-988,458

Finding the Fourth Proportional to 1,108,130.64, 1,531,802.56 and 988,458

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Solution

The fourth proportional to 1,108,130.64, 1,531,802.56 and 988,458 is: 1,366,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,130.64 : 1,531,802.56 = 988,458 : x
  2. Step 2: Convert to fraction form
    1,108,130.64/1,531,802.56 = 988,458/x
  3. Step 3: Cross multiply
    1,108,130.64x = 1,531,802.56 × 988,458
  4. Step 4: Simplify right side
    1,108,130.64x = 1,514,122,494,852.48
  5. Step 5: Solve for x
    x = 1,514,122,494,852.48/1,108,130.64
  6. Step 6: Final answer
    x = 1,366,375.44

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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.