Home / 738,985.06-1,019,797.86-399,452.50

Finding the Fourth Proportional to 738,985.06, 1,019,797.86 and 399,452.50

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Solution

The fourth proportional to 738,985.06, 1,019,797.86 and 399,452.50 is: 551,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,985.06 : 1,019,797.86 = 399,452.50 : x
  2. Step 2: Convert to fraction form
    738,985.06/1,019,797.86 = 399,452.50/x
  3. Step 3: Cross multiply
    738,985.06x = 1,019,797.86 × 399,452.50
  4. Step 4: Simplify right side
    738,985.06x = 407,360,804,671.65
  5. Step 5: Solve for x
    x = 407,360,804,671.65/738,985.06
  6. Step 6: Final answer
    x = 551,243.63

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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.