Home / 1,215,711.36-1,677,715.20-671,882.40

Finding the Fourth Proportional to 1,215,711.36, 1,677,715.20 and 671,882.40

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Solution

The fourth proportional to 1,215,711.36, 1,677,715.20 and 671,882.40 is: 927,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,711.36 : 1,677,715.20 = 671,882.40 : x
  2. Step 2: Convert to fraction form
    1,215,711.36/1,677,715.20 = 671,882.40/x
  3. Step 3: Cross multiply
    1,215,711.36x = 1,677,715.20 × 671,882.40
  4. Step 4: Simplify right side
    1,215,711.36x = 1,127,227,315,092.48
  5. Step 5: Solve for x
    x = 1,127,227,315,092.48/1,215,711.36
  6. Step 6: Final answer
    x = 927,216.24

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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.