Home / 1,006,642.86-1,509,769.33-391,145.76

Finding the Fourth Proportional to 1,006,642.86, 1,509,769.33 and 391,145.76

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Solution

The fourth proportional to 1,006,642.86, 1,509,769.33 and 391,145.76 is: 586,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,642.86 : 1,509,769.33 = 391,145.76 : x
  2. Step 2: Convert to fraction form
    1,006,642.86/1,509,769.33 = 391,145.76/x
  3. Step 3: Cross multiply
    1,006,642.86x = 1,509,769.33 × 391,145.76
  4. Step 4: Simplify right side
    1,006,642.86x = 590,539,872,007.54
  5. Step 5: Solve for x
    x = 590,539,872,007.54/1,006,642.86
  6. Step 6: Final answer
    x = 586,642.89

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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.