Home / 766,633.36-1,057,862.28-439,929.58

Finding the Fourth Proportional to 766,633.36, 1,057,862.28 and 439,929.58

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Solution

The fourth proportional to 766,633.36, 1,057,862.28 and 439,929.58 is: 607,050.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,633.36 : 1,057,862.28 = 439,929.58 : x
  2. Step 2: Convert to fraction form
    766,633.36/1,057,862.28 = 439,929.58/x
  3. Step 3: Cross multiply
    766,633.36x = 1,057,862.28 × 439,929.58
  4. Step 4: Simplify right side
    766,633.36x = 465,384,908,538.24
  5. Step 5: Solve for x
    x = 465,384,908,538.24/766,633.36
  6. Step 6: Final answer
    x = 607,050.17

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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.