Home / 869,148.69-1,199,480.57-487,175.50

Finding the Fourth Proportional to 869,148.69, 1,199,480.57 and 487,175.50

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Solution

The fourth proportional to 869,148.69, 1,199,480.57 and 487,175.50 is: 672,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,148.69 : 1,199,480.57 = 487,175.50 : x
  2. Step 2: Convert to fraction form
    869,148.69/1,199,480.57 = 487,175.50/x
  3. Step 3: Cross multiply
    869,148.69x = 1,199,480.57 × 487,175.50
  4. Step 4: Simplify right side
    869,148.69x = 584,357,546,430.04
  5. Step 5: Solve for x
    x = 584,357,546,430.04/869,148.69
  6. Step 6: Final answer
    x = 672,333.23

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Double scale
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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.