Home / 881,835.31-1,216,951.02-499,862.09

Finding the Fourth Proportional to 881,835.31, 1,216,951.02 and 499,862.09

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Solution

The fourth proportional to 881,835.31, 1,216,951.02 and 499,862.09 is: 689,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,835.31 : 1,216,951.02 = 499,862.09 : x
  2. Step 2: Convert to fraction form
    881,835.31/1,216,951.02 = 499,862.09/x
  3. Step 3: Cross multiply
    881,835.31x = 1,216,951.02 × 499,862.09
  4. Step 4: Simplify right side
    881,835.31x = 608,307,678,590.68
  5. Step 5: Solve for x
    x = 608,307,678,590.68/881,835.31
  6. Step 6: Final answer
    x = 689,820.05

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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.