Home / 800,386.40-1,198,547.52-480,336.80

Finding the Fourth Proportional to 800,386.40, 1,198,547.52 and 480,336.80

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Solution

The fourth proportional to 800,386.40, 1,198,547.52 and 480,336.80 is: 719,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,386.40 : 1,198,547.52 = 480,336.80 : x
  2. Step 2: Convert to fraction form
    800,386.40/1,198,547.52 = 480,336.80/x
  3. Step 3: Cross multiply
    800,386.40x = 1,198,547.52 × 480,336.80
  4. Step 4: Simplify right side
    800,386.40x = 575,706,480,404.74
  5. Step 5: Solve for x
    x = 575,706,480,404.74/800,386.40
  6. Step 6: Final answer
    x = 719,285.69

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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.