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Finding the Fourth Proportional to 565,582.78, 780,623.16 and 358,717.24

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Solution

The fourth proportional to 565,582.78, 780,623.16 and 358,717.24 is: 495,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,582.78 : 780,623.16 = 358,717.24 : x
  2. Step 2: Convert to fraction form
    565,582.78/780,623.16 = 358,717.24/x
  3. Step 3: Cross multiply
    565,582.78x = 780,623.16 × 358,717.24
  4. Step 4: Simplify right side
    565,582.78x = 280,022,985,435.28
  5. Step 5: Solve for x
    x = 280,022,985,435.28/565,582.78
  6. Step 6: Final answer
    x = 495,105.22

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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.