Home / 1,042,667.05-1,564,000.58-642,008.65

Finding the Fourth Proportional to 1,042,667.05, 1,564,000.58 and 642,008.65

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Solution

The fourth proportional to 1,042,667.05, 1,564,000.58 and 642,008.65 is: 963,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,667.05 : 1,564,000.58 = 642,008.65 : x
  2. Step 2: Convert to fraction form
    1,042,667.05/1,564,000.58 = 642,008.65/x
  3. Step 3: Cross multiply
    1,042,667.05x = 1,564,000.58 × 642,008.65
  4. Step 4: Simplify right side
    1,042,667.05x = 1,004,101,897,754.97
  5. Step 5: Solve for x
    x = 1,004,101,897,754.97/1,042,667.05
  6. Step 6: Final answer
    x = 963,012.98

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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.