Home / 739,010.02-1,019,834.67-399,478

Finding the Fourth Proportional to 739,010.02, 1,019,834.67 and 399,478

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Solution

The fourth proportional to 739,010.02, 1,019,834.67 and 399,478 is: 551,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,010.02 : 1,019,834.67 = 399,478 : x
  2. Step 2: Convert to fraction form
    739,010.02/1,019,834.67 = 399,478/x
  3. Step 3: Cross multiply
    739,010.02x = 1,019,834.67 × 399,478
  4. Step 4: Simplify right side
    739,010.02x = 407,401,514,302.26
  5. Step 5: Solve for x
    x = 407,401,514,302.26/739,010.02
  6. Step 6: Final answer
    x = 551,280.10

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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.