Home / 677,038.20-1,015,265.70-339,948.60

Finding the Fourth Proportional to 677,038.20, 1,015,265.70 and 339,948.60

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Solution

The fourth proportional to 677,038.20, 1,015,265.70 and 339,948.60 is: 509,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,038.20 : 1,015,265.70 = 339,948.60 : x
  2. Step 2: Convert to fraction form
    677,038.20/1,015,265.70 = 339,948.60/x
  3. Step 3: Cross multiply
    677,038.20x = 1,015,265.70 × 339,948.60
  4. Step 4: Simplify right side
    677,038.20x = 345,138,153,343.02
  5. Step 5: Solve for x
    x = 345,138,153,343.02/677,038.20
  6. Step 6: Final answer
    x = 509,776.48

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1.5x scale

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.