Home / 723,182.87-997,925.27-400,865.55

Finding the Fourth Proportional to 723,182.87, 997,925.27 and 400,865.55

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Solution

The fourth proportional to 723,182.87, 997,925.27 and 400,865.55 is: 553,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,182.87 : 997,925.27 = 400,865.55 : x
  2. Step 2: Convert to fraction form
    723,182.87/997,925.27 = 400,865.55/x
  3. Step 3: Cross multiply
    723,182.87x = 997,925.27 × 400,865.55
  4. Step 4: Simplify right side
    723,182.87x = 400,033,860,213.12
  5. Step 5: Solve for x
    x = 400,033,860,213.12/723,182.87
  6. Step 6: Final answer
    x = 553,157.27

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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.