Home / 1,239,726.79-1,858,867.64-480,681.50

Finding the Fourth Proportional to 1,239,726.79, 1,858,867.64 and 480,681.50

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Solution

The fourth proportional to 1,239,726.79, 1,858,867.64 and 480,681.50 is: 720,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,726.79 : 1,858,867.64 = 480,681.50 : x
  2. Step 2: Convert to fraction form
    1,239,726.79/1,858,867.64 = 480,681.50/x
  3. Step 3: Cross multiply
    1,239,726.79x = 1,858,867.64 × 480,681.50
  4. Step 4: Simplify right side
    1,239,726.79x = 893,523,283,093.25
  5. Step 5: Solve for x
    x = 893,523,283,093.25/1,239,726.79
  6. Step 6: Final answer
    x = 720,742.10

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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.