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Finding the Fourth Proportional to 671,462.20, 926,659.80 and 369,656.20

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Solution

The fourth proportional to 671,462.20, 926,659.80 and 369,656.20 is: 510,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,462.20 : 926,659.80 = 369,656.20 : x
  2. Step 2: Convert to fraction form
    671,462.20/926,659.80 = 369,656.20/x
  3. Step 3: Cross multiply
    671,462.20x = 926,659.80 × 369,656.20
  4. Step 4: Simplify right side
    671,462.20x = 342,545,540,360.76
  5. Step 5: Solve for x
    x = 342,545,540,360.76/671,462.20
  6. Step 6: Final answer
    x = 510,148.66

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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.