Home / 723,180.75-997,922.34-400,863.44

Finding the Fourth Proportional to 723,180.75, 997,922.34 and 400,863.44

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Solution

The fourth proportional to 723,180.75, 997,922.34 and 400,863.44 is: 553,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,180.75 : 997,922.34 = 400,863.44 : x
  2. Step 2: Convert to fraction form
    723,180.75/997,922.34 = 400,863.44/x
  3. Step 3: Cross multiply
    723,180.75x = 997,922.34 × 400,863.44
  4. Step 4: Simplify right side
    723,180.75x = 400,030,577,075.64
  5. Step 5: Solve for x
    x = 400,030,577,075.64/723,180.75
  6. Step 6: Final answer
    x = 553,154.35

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Double scale
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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.