Home / 738,720.96-1,019,438.40-432,851.76

Finding the Fourth Proportional to 738,720.96, 1,019,438.40 and 432,851.76

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Solution

The fourth proportional to 738,720.96, 1,019,438.40 and 432,851.76 is: 597,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,720.96 : 1,019,438.40 = 432,851.76 : x
  2. Step 2: Convert to fraction form
    738,720.96/1,019,438.40 = 432,851.76/x
  3. Step 3: Cross multiply
    738,720.96x = 1,019,438.40 × 432,851.76
  4. Step 4: Simplify right side
    738,720.96x = 441,265,705,651.58
  5. Step 5: Solve for x
    x = 441,265,705,651.58/738,720.96
  6. Step 6: Final answer
    x = 597,337.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.