Home / 1,117,932.60-1,676,769.30-319,337.40

Finding the Fourth Proportional to 1,117,932.60, 1,676,769.30 and 319,337.40

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Solution

The fourth proportional to 1,117,932.60, 1,676,769.30 and 319,337.40 is: 478,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,932.60 : 1,676,769.30 = 319,337.40 : x
  2. Step 2: Convert to fraction form
    1,117,932.60/1,676,769.30 = 319,337.40/x
  3. Step 3: Cross multiply
    1,117,932.60x = 1,676,769.30 × 319,337.40
  4. Step 4: Simplify right side
    1,117,932.60x = 535,455,148,661.82
  5. Step 5: Solve for x
    x = 535,455,148,661.82/1,117,932.60
  6. Step 6: Final answer
    x = 478,969.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.