Home / 723,023.86-997,832.64-400,835.02

Finding the Fourth Proportional to 723,023.86, 997,832.64 and 400,835.02

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Solution

The fourth proportional to 723,023.86, 997,832.64 and 400,835.02 is: 553,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,023.86 : 997,832.64 = 400,835.02 : x
  2. Step 2: Convert to fraction form
    723,023.86/997,832.64 = 400,835.02/x
  3. Step 3: Cross multiply
    723,023.86x = 997,832.64 × 400,835.02
  4. Step 4: Simplify right side
    723,023.86x = 399,966,266,211.05
  5. Step 5: Solve for x
    x = 399,966,266,211.05/723,023.86
  6. Step 6: Final answer
    x = 553,185.43

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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.