Home / 723,329.02-998,189.28-401,039.20

Finding the Fourth Proportional to 723,329.02, 998,189.28 and 401,039.20

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Solution

The fourth proportional to 723,329.02, 998,189.28 and 401,039.20 is: 553,431.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,329.02 : 998,189.28 = 401,039.20 : x
  2. Step 2: Convert to fraction form
    723,329.02/998,189.28 = 401,039.20/x
  3. Step 3: Cross multiply
    723,329.02x = 998,189.28 × 401,039.20
  4. Step 4: Simplify right side
    723,329.02x = 400,313,030,299.78
  5. Step 5: Solve for x
    x = 400,313,030,299.78/723,329.02
  6. Step 6: Final answer
    x = 553,431.45

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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.