Home / 763,656.20-1,145,466.58-384,475.13

Finding the Fourth Proportional to 763,656.20, 1,145,466.58 and 384,475.13

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Solution

The fourth proportional to 763,656.20, 1,145,466.58 and 384,475.13 is: 576,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,656.20 : 1,145,466.58 = 384,475.13 : x
  2. Step 2: Convert to fraction form
    763,656.20/1,145,466.58 = 384,475.13/x
  3. Step 3: Cross multiply
    763,656.20x = 1,145,466.58 × 384,475.13
  4. Step 4: Simplify right side
    763,656.20x = 440,403,412,183.67
  5. Step 5: Solve for x
    x = 440,403,412,183.67/763,656.20
  6. Step 6: Final answer
    x = 576,703.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.