Home / 959,403.40-1,437,209.70-486,428.20

Finding the Fourth Proportional to 959,403.40, 1,437,209.70 and 486,428.20

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Solution

The fourth proportional to 959,403.40, 1,437,209.70 and 486,428.20 is: 728,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,403.40 : 1,437,209.70 = 486,428.20 : x
  2. Step 2: Convert to fraction form
    959,403.40/1,437,209.70 = 486,428.20/x
  3. Step 3: Cross multiply
    959,403.40x = 1,437,209.70 × 486,428.20
  4. Step 4: Simplify right side
    959,403.40x = 699,099,327,393.54
  5. Step 5: Solve for x
    x = 699,099,327,393.54/959,403.40
  6. Step 6: Final answer
    x = 728,681.31

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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.