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Finding the Fourth Proportional to 723,165.33, 997,952.22 and 400,872.63

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Solution

The fourth proportional to 723,165.33, 997,952.22 and 400,872.63 is: 553,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,165.33 : 997,952.22 = 400,872.63 : x
  2. Step 2: Convert to fraction form
    723,165.33/997,952.22 = 400,872.63/x
  3. Step 3: Cross multiply
    723,165.33x = 997,952.22 × 400,872.63
  4. Step 4: Simplify right side
    723,165.33x = 400,051,731,045.74
  5. Step 5: Solve for x
    x = 400,051,731,045.74/723,165.33
  6. Step 6: Final answer
    x = 553,195.40

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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.