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Finding the Fourth Proportional to 583,630.72, 805,410.37 and 315,358.72

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Solution

The fourth proportional to 583,630.72, 805,410.37 and 315,358.72 is: 435,195.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,630.72 : 805,410.37 = 315,358.72 : x
  2. Step 2: Convert to fraction form
    583,630.72/805,410.37 = 315,358.72/x
  3. Step 3: Cross multiply
    583,630.72x = 805,410.37 × 315,358.72
  4. Step 4: Simplify right side
    583,630.72x = 253,993,183,357.93
  5. Step 5: Solve for x
    x = 253,993,183,357.93/583,630.72
  6. Step 6: Final answer
    x = 435,195.02

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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.