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Finding the Fourth Proportional to 647,482.46, 893,579.08 and 357,150.92

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Solution

The fourth proportional to 647,482.46, 893,579.08 and 357,150.92 is: 492,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,482.46 : 893,579.08 = 357,150.92 : x
  2. Step 2: Convert to fraction form
    647,482.46/893,579.08 = 357,150.92/x
  3. Step 3: Cross multiply
    647,482.46x = 893,579.08 × 357,150.92
  4. Step 4: Simplify right side
    647,482.46x = 319,142,590,514.75
  5. Step 5: Solve for x
    x = 319,142,590,514.75/647,482.46
  6. Step 6: Final answer
    x = 492,897.66

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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.