Home / 723,143.34-997,921.92-400,850.60

Finding the Fourth Proportional to 723,143.34, 997,921.92 and 400,850.60

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Solution

The fourth proportional to 723,143.34, 997,921.92 and 400,850.60 is: 553,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,143.34 : 997,921.92 = 400,850.60 : x
  2. Step 2: Convert to fraction form
    723,143.34/997,921.92 = 400,850.60/x
  3. Step 3: Cross multiply
    723,143.34x = 997,921.92 × 400,850.60
  4. Step 4: Simplify right side
    723,143.34x = 400,017,600,385.15
  5. Step 5: Solve for x
    x = 400,017,600,385.15/723,143.34
  6. Step 6: Final answer
    x = 553,165.02

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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.