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Finding the Fourth Proportional to 565,243.51, 780,070.94 and 323,520.93

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Solution

The fourth proportional to 565,243.51, 780,070.94 and 323,520.93 is: 446,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,243.51 : 780,070.94 = 323,520.93 : x
  2. Step 2: Convert to fraction form
    565,243.51/780,070.94 = 323,520.93/x
  3. Step 3: Cross multiply
    565,243.51x = 780,070.94 × 323,520.93
  4. Step 4: Simplify right side
    565,243.51x = 252,369,274,357.17
  5. Step 5: Solve for x
    x = 252,369,274,357.17/565,243.51
  6. Step 6: Final answer
    x = 446,478.85

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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.