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Finding the Fourth Proportional to 575,833.60, 862,648.80 and 309,505.60

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Solution

The fourth proportional to 575,833.60, 862,648.80 and 309,505.60 is: 463,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,833.60 : 862,648.80 = 309,505.60 : x
  2. Step 2: Convert to fraction form
    575,833.60/862,648.80 = 309,505.60/x
  3. Step 3: Cross multiply
    575,833.60x = 862,648.80 × 309,505.60
  4. Step 4: Simplify right side
    575,833.60x = 266,994,634,433.28
  5. Step 5: Solve for x
    x = 266,994,634,433.28/575,833.60
  6. Step 6: Final answer
    x = 463,666.30

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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.