Home / 738,737.31-1,019,457.50-399,205.56

Finding the Fourth Proportional to 738,737.31, 1,019,457.50 and 399,205.56

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Solution

The fourth proportional to 738,737.31, 1,019,457.50 and 399,205.56 is: 550,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,737.31 : 1,019,457.50 = 399,205.56 : x
  2. Step 2: Convert to fraction form
    738,737.31/1,019,457.50 = 399,205.56/x
  3. Step 3: Cross multiply
    738,737.31x = 1,019,457.50 × 399,205.56
  4. Step 4: Simplify right side
    738,737.31x = 406,973,104,010.64
  5. Step 5: Solve for x
    x = 406,973,104,010.64/738,737.31
  6. Step 6: Final answer
    x = 550,903.68

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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.