Home / 1,215,711.86-1,677,715.89-671,882.90

Finding the Fourth Proportional to 1,215,711.86, 1,677,715.89 and 671,882.90

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Solution

The fourth proportional to 1,215,711.86, 1,677,715.89 and 671,882.90 is: 927,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,711.86 : 1,677,715.89 = 671,882.90 : x
  2. Step 2: Convert to fraction form
    1,215,711.86/1,677,715.89 = 671,882.90/x
  3. Step 3: Cross multiply
    1,215,711.86x = 1,677,715.89 × 671,882.90
  4. Step 4: Simplify right side
    1,215,711.86x = 1,127,228,617,549.28
  5. Step 5: Solve for x
    x = 1,127,228,617,549.28/1,215,711.86
  6. Step 6: Final answer
    x = 927,216.93

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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.