Home / 1,678,911.86-2,316,830.78-914,949.02

Finding the Fourth Proportional to 1,678,911.86, 2,316,830.78 and 914,949.02

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Solution

The fourth proportional to 1,678,911.86, 2,316,830.78 and 914,949.02 is: 1,262,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,911.86 : 2,316,830.78 = 914,949.02 : x
  2. Step 2: Convert to fraction form
    1,678,911.86/2,316,830.78 = 914,949.02/x
  3. Step 3: Cross multiply
    1,678,911.86x = 2,316,830.78 × 914,949.02
  4. Step 4: Simplify right side
    1,678,911.86x = 2,119,782,051,666.84
  5. Step 5: Solve for x
    x = 2,119,782,051,666.84/1,678,911.86
  6. Step 6: Final answer
    x = 1,262,592.82

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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.