Home / 763,828.20-1,053,644.40-476,850.06

Finding the Fourth Proportional to 763,828.20, 1,053,644.40 and 476,850.06

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Solution

The fourth proportional to 763,828.20, 1,053,644.40 and 476,850.06 is: 657,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,828.20 : 1,053,644.40 = 476,850.06 : x
  2. Step 2: Convert to fraction form
    763,828.20/1,053,644.40 = 476,850.06/x
  3. Step 3: Cross multiply
    763,828.20x = 1,053,644.40 × 476,850.06
  4. Step 4: Simplify right side
    763,828.20x = 502,430,395,358.66
  5. Step 5: Solve for x
    x = 502,430,395,358.66/763,828.20
  6. Step 6: Final answer
    x = 657,779.32

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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.