Home / 1,126,490.64-1,554,497.64-643,036.56

Finding the Fourth Proportional to 1,126,490.64, 1,554,497.64 and 643,036.56

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Solution

The fourth proportional to 1,126,490.64, 1,554,497.64 and 643,036.56 is: 887,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,490.64 : 1,554,497.64 = 643,036.56 : x
  2. Step 2: Convert to fraction form
    1,126,490.64/1,554,497.64 = 643,036.56/x
  3. Step 3: Cross multiply
    1,126,490.64x = 1,554,497.64 × 643,036.56
  4. Step 4: Simplify right side
    1,126,490.64x = 999,598,814,953.72
  5. Step 5: Solve for x
    x = 999,598,814,953.72/1,126,490.64
  6. Step 6: Final answer
    x = 887,356.52

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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.