Home / 855,631.85-1,180,837.53-488,117.07

Finding the Fourth Proportional to 855,631.85, 1,180,837.53 and 488,117.07

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Solution

The fourth proportional to 855,631.85, 1,180,837.53 and 488,117.07 is: 673,638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,631.85 : 1,180,837.53 = 488,117.07 : x
  2. Step 2: Convert to fraction form
    855,631.85/1,180,837.53 = 488,117.07/x
  3. Step 3: Cross multiply
    855,631.85x = 1,180,837.53 × 488,117.07
  4. Step 4: Simplify right side
    855,631.85x = 576,386,955,289.64
  5. Step 5: Solve for x
    x = 576,386,955,289.64/855,631.85
  6. Step 6: Final answer
    x = 673,638.97

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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.