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Finding the Fourth Proportional to 634,507.24, 875,644.50 and 348,039.40

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Solution

The fourth proportional to 634,507.24, 875,644.50 and 348,039.40 is: 480,307.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,507.24 : 875,644.50 = 348,039.40 : x
  2. Step 2: Convert to fraction form
    634,507.24/875,644.50 = 348,039.40/x
  3. Step 3: Cross multiply
    634,507.24x = 875,644.50 × 348,039.40
  4. Step 4: Simplify right side
    634,507.24x = 304,758,786,393.30
  5. Step 5: Solve for x
    x = 304,758,786,393.30/634,507.24
  6. Step 6: Final answer
    x = 480,307.82

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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.