Home / 1,238,486.40-1,857,729.60-397,641.60

Finding the Fourth Proportional to 1,238,486.40, 1,857,729.60 and 397,641.60

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Solution

The fourth proportional to 1,238,486.40, 1,857,729.60 and 397,641.60 is: 596,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,486.40 : 1,857,729.60 = 397,641.60 : x
  2. Step 2: Convert to fraction form
    1,238,486.40/1,857,729.60 = 397,641.60/x
  3. Step 3: Cross multiply
    1,238,486.40x = 1,857,729.60 × 397,641.60
  4. Step 4: Simplify right side
    1,238,486.40x = 738,710,570,511.36
  5. Step 5: Solve for x
    x = 738,710,570,511.36/1,238,486.40
  6. Step 6: Final answer
    x = 596,462.40

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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.