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Finding the Fourth Proportional to 673,500.93, 929,439.87 and 397,867.86

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Solution

The fourth proportional to 673,500.93, 929,439.87 and 397,867.86 is: 549,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,500.93 : 929,439.87 = 397,867.86 : x
  2. Step 2: Convert to fraction form
    673,500.93/929,439.87 = 397,867.86/x
  3. Step 3: Cross multiply
    673,500.93x = 929,439.87 × 397,867.86
  4. Step 4: Simplify right side
    673,500.93x = 369,794,252,075.58
  5. Step 5: Solve for x
    x = 369,794,252,075.58/673,500.93
  6. Step 6: Final answer
    x = 549,062.72

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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.