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Finding the Fourth Proportional to 647,483.46, 893,580.46 and 357,151.92

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Solution

The fourth proportional to 647,483.46, 893,580.46 and 357,151.92 is: 492,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,483.46 : 893,580.46 = 357,151.92 : x
  2. Step 2: Convert to fraction form
    647,483.46/893,580.46 = 357,151.92/x
  3. Step 3: Cross multiply
    647,483.46x = 893,580.46 × 357,151.92
  4. Step 4: Simplify right side
    647,483.46x = 319,143,976,963.48
  5. Step 5: Solve for x
    x = 319,143,976,963.48/647,483.46
  6. Step 6: Final answer
    x = 492,899.04

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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.