Home / 485,821.63-670,434.87-270,956.17

Finding the Fourth Proportional to 485,821.63, 670,434.87 and 270,956.17

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Solution

The fourth proportional to 485,821.63, 670,434.87 and 270,956.17 is: 373,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,821.63 : 670,434.87 = 270,956.17 : x
  2. Step 2: Convert to fraction form
    485,821.63/670,434.87 = 270,956.17/x
  3. Step 3: Cross multiply
    485,821.63x = 670,434.87 × 270,956.17
  4. Step 4: Simplify right side
    485,821.63x = 181,658,464,609.65
  5. Step 5: Solve for x
    x = 181,658,464,609.65/485,821.63
  6. Step 6: Final answer
    x = 373,920.08

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1.5x scale

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.