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Finding the Fourth Proportional to 565,516.04, 780,417.66 and 307,392.84

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Solution

The fourth proportional to 565,516.04, 780,417.66 and 307,392.84 is: 424,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,516.04 : 780,417.66 = 307,392.84 : x
  2. Step 2: Convert to fraction form
    565,516.04/780,417.66 = 307,392.84/x
  3. Step 3: Cross multiply
    565,516.04x = 780,417.66 × 307,392.84
  4. Step 4: Simplify right side
    565,516.04x = 239,894,800,893.55
  5. Step 5: Solve for x
    x = 239,894,800,893.55/565,516.04
  6. Step 6: Final answer
    x = 424,205.12

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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.