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Finding the Fourth Proportional to 553,779.20, 830,668.80 and 341,202.80

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Solution

The fourth proportional to 553,779.20, 830,668.80 and 341,202.80 is: 511,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,779.20 : 830,668.80 = 341,202.80 : x
  2. Step 2: Convert to fraction form
    553,779.20/830,668.80 = 341,202.80/x
  3. Step 3: Cross multiply
    553,779.20x = 830,668.80 × 341,202.80
  4. Step 4: Simplify right side
    553,779.20x = 283,426,520,432.64
  5. Step 5: Solve for x
    x = 283,426,520,432.64/553,779.20
  6. Step 6: Final answer
    x = 511,804.20

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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.