Home / 1,239,726.29-1,858,866.89-480,681

Finding the Fourth Proportional to 1,239,726.29, 1,858,866.89 and 480,681

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Solution

The fourth proportional to 1,239,726.29, 1,858,866.89 and 480,681 is: 720,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,726.29 : 1,858,866.89 = 480,681 : x
  2. Step 2: Convert to fraction form
    1,239,726.29/1,858,866.89 = 480,681/x
  3. Step 3: Cross multiply
    1,239,726.29x = 1,858,866.89 × 480,681
  4. Step 4: Simplify right side
    1,239,726.29x = 893,521,993,148.69
  5. Step 5: Solve for x
    x = 893,521,993,148.69/1,239,726.29
  6. Step 6: Final answer
    x = 720,741.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.