Home / 806,419.20-1,209,580.08-357,008.64

Finding the Fourth Proportional to 806,419.20, 1,209,580.08 and 357,008.64

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Solution

The fourth proportional to 806,419.20, 1,209,580.08 and 357,008.64 is: 535,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,419.20 : 1,209,580.08 = 357,008.64 : x
  2. Step 2: Convert to fraction form
    806,419.20/1,209,580.08 = 357,008.64/x
  3. Step 3: Cross multiply
    806,419.20x = 1,209,580.08 × 357,008.64
  4. Step 4: Simplify right side
    806,419.20x = 431,830,539,331.89
  5. Step 5: Solve for x
    x = 431,830,539,331.89/806,419.20
  6. Step 6: Final answer
    x = 535,491.39

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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.