Home / 1,433,572.71-1,978,330.64-780,201.29

Finding the Fourth Proportional to 1,433,572.71, 1,978,330.64 and 780,201.29

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Solution

The fourth proportional to 1,433,572.71, 1,978,330.64 and 780,201.29 is: 1,076,677.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,572.71 : 1,978,330.64 = 780,201.29 : x
  2. Step 2: Convert to fraction form
    1,433,572.71/1,978,330.64 = 780,201.29/x
  3. Step 3: Cross multiply
    1,433,572.71x = 1,978,330.64 × 780,201.29
  4. Step 4: Simplify right side
    1,433,572.71x = 1,543,496,107,482.87
  5. Step 5: Solve for x
    x = 1,543,496,107,482.87/1,433,572.71
  6. Step 6: Final answer
    x = 1,076,677.94

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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.