Home / 691,135.98-953,652.02-385,145.28

Finding the Fourth Proportional to 691,135.98, 953,652.02 and 385,145.28

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Solution

The fourth proportional to 691,135.98, 953,652.02 and 385,145.28 is: 531,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,135.98 : 953,652.02 = 385,145.28 : x
  2. Step 2: Convert to fraction form
    691,135.98/953,652.02 = 385,145.28/x
  3. Step 3: Cross multiply
    691,135.98x = 953,652.02 × 385,145.28
  4. Step 4: Simplify right side
    691,135.98x = 367,294,574,265.47
  5. Step 5: Solve for x
    x = 367,294,574,265.47/691,135.98
  6. Step 6: Final answer
    x = 531,436.05

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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.