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Finding the Fourth Proportional to 478,937.84, 660,247.48 and 376,785.88

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Solution

The fourth proportional to 478,937.84, 660,247.48 and 376,785.88 is: 519,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,937.84 : 660,247.48 = 376,785.88 : x
  2. Step 2: Convert to fraction form
    478,937.84/660,247.48 = 376,785.88/x
  3. Step 3: Cross multiply
    478,937.84x = 660,247.48 × 376,785.88
  4. Step 4: Simplify right side
    478,937.84x = 248,771,927,769.58
  5. Step 5: Solve for x
    x = 248,771,927,769.58/478,937.84
  6. Step 6: Final answer
    x = 519,424.25

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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.