Home / 743,698.17-1,115,547.66-490,919.58

Finding the Fourth Proportional to 743,698.17, 1,115,547.66 and 490,919.58

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Solution

The fourth proportional to 743,698.17, 1,115,547.66 and 490,919.58 is: 736,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,698.17 : 1,115,547.66 = 490,919.58 : x
  2. Step 2: Convert to fraction form
    743,698.17/1,115,547.66 = 490,919.58/x
  3. Step 3: Cross multiply
    743,698.17x = 1,115,547.66 × 490,919.58
  4. Step 4: Simplify right side
    743,698.17x = 547,644,188,717.18
  5. Step 5: Solve for x
    x = 547,644,188,717.18/743,698.17
  6. Step 6: Final answer
    x = 736,379.64

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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.