Home / 790,830.60-1,185,371.10-436,099.20

Finding the Fourth Proportional to 790,830.60, 1,185,371.10 and 436,099.20

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Solution

The fourth proportional to 790,830.60, 1,185,371.10 and 436,099.20 is: 653,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,830.60 : 1,185,371.10 = 436,099.20 : x
  2. Step 2: Convert to fraction form
    790,830.60/1,185,371.10 = 436,099.20/x
  3. Step 3: Cross multiply
    790,830.60x = 1,185,371.10 × 436,099.20
  4. Step 4: Simplify right side
    790,830.60x = 516,939,388,413.12
  5. Step 5: Solve for x
    x = 516,939,388,413.12/790,830.60
  6. Step 6: Final answer
    x = 653,666.40

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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.