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Finding the Fourth Proportional to 617,875.60, 852,740.16 and 376,299.76

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Solution

The fourth proportional to 617,875.60, 852,740.16 and 376,299.76 is: 519,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,875.60 : 852,740.16 = 376,299.76 : x
  2. Step 2: Convert to fraction form
    617,875.60/852,740.16 = 376,299.76/x
  3. Step 3: Cross multiply
    617,875.60x = 852,740.16 × 376,299.76
  4. Step 4: Simplify right side
    617,875.60x = 320,885,917,550.36
  5. Step 5: Solve for x
    x = 320,885,917,550.36/617,875.60
  6. Step 6: Final answer
    x = 519,337.42

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1.5x scale

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.