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Finding the Fourth Proportional to 630,922.91, 870,750.02 and 359,056.94

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Solution

The fourth proportional to 630,922.91, 870,750.02 and 359,056.94 is: 495,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,922.91 : 870,750.02 = 359,056.94 : x
  2. Step 2: Convert to fraction form
    630,922.91/870,750.02 = 359,056.94/x
  3. Step 3: Cross multiply
    630,922.91x = 870,750.02 × 359,056.94
  4. Step 4: Simplify right side
    630,922.91x = 312,648,837,686.14
  5. Step 5: Solve for x
    x = 312,648,837,686.14/630,922.91
  6. Step 6: Final answer
    x = 495,542.06

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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.