Home / 1,152,326.44-1,590,063.78-643,050.28

Finding the Fourth Proportional to 1,152,326.44, 1,590,063.78 and 643,050.28

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Solution

The fourth proportional to 1,152,326.44, 1,590,063.78 and 643,050.28 is: 887,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,326.44 : 1,590,063.78 = 643,050.28 : x
  2. Step 2: Convert to fraction form
    1,152,326.44/1,590,063.78 = 643,050.28/x
  3. Step 3: Cross multiply
    1,152,326.44x = 1,590,063.78 × 643,050.28
  4. Step 4: Simplify right side
    1,152,326.44x = 1,022,490,958,946.86
  5. Step 5: Solve for x
    x = 1,022,490,958,946.86/1,152,326.44
  6. Step 6: Final answer
    x = 887,327.52

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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.