Home / 1,119,400.80-1,678,117.05-670,300.35

Finding the Fourth Proportional to 1,119,400.80, 1,678,117.05 and 670,300.35

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Solution

The fourth proportional to 1,119,400.80, 1,678,117.05 and 670,300.35 is: 1,004,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,400.80 : 1,678,117.05 = 670,300.35 : x
  2. Step 2: Convert to fraction form
    1,119,400.80/1,678,117.05 = 670,300.35/x
  3. Step 3: Cross multiply
    1,119,400.80x = 1,678,117.05 × 670,300.35
  4. Step 4: Simplify right side
    1,119,400.80x = 1,124,842,445,955.97
  5. Step 5: Solve for x
    x = 1,124,842,445,955.97/1,119,400.80
  6. Step 6: Final answer
    x = 1,004,861.21

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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.