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Finding the Fourth Proportional to 647,199.60, 893,061.63 and 375,210.78

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Solution

The fourth proportional to 647,199.60, 893,061.63 and 375,210.78 is: 517,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,199.60 : 893,061.63 = 375,210.78 : x
  2. Step 2: Convert to fraction form
    647,199.60/893,061.63 = 375,210.78/x
  3. Step 3: Cross multiply
    647,199.60x = 893,061.63 × 375,210.78
  4. Step 4: Simplify right side
    647,199.60x = 335,086,350,780.37
  5. Step 5: Solve for x
    x = 335,086,350,780.37/647,199.60
  6. Step 6: Final answer
    x = 517,748.08

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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.