Home / 829,209.60-1,242,892.80-355,814.40

Finding the Fourth Proportional to 829,209.60, 1,242,892.80 and 355,814.40

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Solution

The fourth proportional to 829,209.60, 1,242,892.80 and 355,814.40 is: 533,326.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,209.60 : 1,242,892.80 = 355,814.40 : x
  2. Step 2: Convert to fraction form
    829,209.60/1,242,892.80 = 355,814.40/x
  3. Step 3: Cross multiply
    829,209.60x = 1,242,892.80 × 355,814.40
  4. Step 4: Simplify right side
    829,209.60x = 442,239,155,896.32
  5. Step 5: Solve for x
    x = 442,239,155,896.32/829,209.60
  6. Step 6: Final answer
    x = 533,326.14

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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.