Home / 723,137.34-997,913.64-400,844.60

Finding the Fourth Proportional to 723,137.34, 997,913.64 and 400,844.60

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Solution

The fourth proportional to 723,137.34, 997,913.64 and 400,844.60 is: 553,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,137.34 : 997,913.64 = 400,844.60 : x
  2. Step 2: Convert to fraction form
    723,137.34/997,913.64 = 400,844.60/x
  3. Step 3: Cross multiply
    723,137.34x = 997,913.64 × 400,844.60
  4. Step 4: Simplify right side
    723,137.34x = 400,008,293,860.34
  5. Step 5: Solve for x
    x = 400,008,293,860.34/723,137.34
  6. Step 6: Final answer
    x = 553,156.74

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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.