Home / 1,119,996.15-1,680,000.30-278,547.90

Finding the Fourth Proportional to 1,119,996.15, 1,680,000.30 and 278,547.90

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Solution

The fourth proportional to 1,119,996.15, 1,680,000.30 and 278,547.90 is: 417,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,996.15 : 1,680,000.30 = 278,547.90 : x
  2. Step 2: Convert to fraction form
    1,119,996.15/1,680,000.30 = 278,547.90/x
  3. Step 3: Cross multiply
    1,119,996.15x = 1,680,000.30 × 278,547.90
  4. Step 4: Simplify right side
    1,119,996.15x = 467,960,555,564.37
  5. Step 5: Solve for x
    x = 467,960,555,564.37/1,119,996.15
  6. Step 6: Final answer
    x = 417,823.36

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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.