Home / 1,119,659.72-1,679,490.80-278,211.47

Finding the Fourth Proportional to 1,119,659.72, 1,679,490.80 and 278,211.47

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Solution

The fourth proportional to 1,119,659.72, 1,679,490.80 and 278,211.47 is: 417,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,659.72 : 1,679,490.80 = 278,211.47 : x
  2. Step 2: Convert to fraction form
    1,119,659.72/1,679,490.80 = 278,211.47/x
  3. Step 3: Cross multiply
    1,119,659.72x = 1,679,490.80 × 278,211.47
  4. Step 4: Simplify right side
    1,119,659.72x = 467,253,602,928.42
  5. Step 5: Solve for x
    x = 467,253,602,928.42/1,119,659.72
  6. Step 6: Final answer
    x = 417,317.51

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1.5x scale

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.