Home / 1,215,428.27-1,677,145.16-671,530.55

Finding the Fourth Proportional to 1,215,428.27, 1,677,145.16 and 671,530.55

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Solution

The fourth proportional to 1,215,428.27, 1,677,145.16 and 671,530.55 is: 926,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,428.27 : 1,677,145.16 = 671,530.55 : x
  2. Step 2: Convert to fraction form
    1,215,428.27/1,677,145.16 = 671,530.55/x
  3. Step 3: Cross multiply
    1,215,428.27x = 1,677,145.16 × 671,530.55
  4. Step 4: Simplify right side
    1,215,428.27x = 1,126,254,205,017.74
  5. Step 5: Solve for x
    x = 1,126,254,205,017.74/1,215,428.27
  6. Step 6: Final answer
    x = 926,631.57

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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.