Home / 1,126,570.68-1,554,729.80-643,291.07

Finding the Fourth Proportional to 1,126,570.68, 1,554,729.80 and 643,291.07

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Solution

The fourth proportional to 1,126,570.68, 1,554,729.80 and 643,291.07 is: 887,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,570.68 : 1,554,729.80 = 643,291.07 : x
  2. Step 2: Convert to fraction form
    1,126,570.68/1,554,729.80 = 643,291.07/x
  3. Step 3: Cross multiply
    1,126,570.68x = 1,554,729.80 × 643,291.07
  4. Step 4: Simplify right side
    1,126,570.68x = 1,000,143,785,612.78
  5. Step 5: Solve for x
    x = 1,000,143,785,612.78/1,126,570.68
  6. Step 6: Final answer
    x = 887,777.22

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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.