Home / 1,125,472.66-1,687,683.52-405,719.58

Finding the Fourth Proportional to 1,125,472.66, 1,687,683.52 and 405,719.58

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Solution

The fourth proportional to 1,125,472.66, 1,687,683.52 and 405,719.58 is: 608,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,472.66 : 1,687,683.52 = 405,719.58 : x
  2. Step 2: Convert to fraction form
    1,125,472.66/1,687,683.52 = 405,719.58/x
  3. Step 3: Cross multiply
    1,125,472.66x = 1,687,683.52 × 405,719.58
  4. Step 4: Simplify right side
    1,125,472.66x = 684,726,248,907.32
  5. Step 5: Solve for x
    x = 684,726,248,907.32/1,125,472.66
  6. Step 6: Final answer
    x = 608,389.94

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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.