Home / 1,117,142.78-1,541,421.81-730,524.92

Finding the Fourth Proportional to 1,117,142.78, 1,541,421.81 and 730,524.92

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Solution

The fourth proportional to 1,117,142.78, 1,541,421.81 and 730,524.92 is: 1,007,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,142.78 : 1,541,421.81 = 730,524.92 : x
  2. Step 2: Convert to fraction form
    1,117,142.78/1,541,421.81 = 730,524.92/x
  3. Step 3: Cross multiply
    1,117,142.78x = 1,541,421.81 × 730,524.92
  4. Step 4: Simplify right side
    1,117,142.78x = 1,126,047,036,729.40
  5. Step 5: Solve for x
    x = 1,126,047,036,729.40/1,117,142.78
  6. Step 6: Final answer
    x = 1,007,970.57

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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.