Home / 832,816.10-1,149,216.32-488,615.78

Finding the Fourth Proportional to 832,816.10, 1,149,216.32 and 488,615.78

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Solution

The fourth proportional to 832,816.10, 1,149,216.32 and 488,615.78 is: 674,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,816.10 : 1,149,216.32 = 488,615.78 : x
  2. Step 2: Convert to fraction form
    832,816.10/1,149,216.32 = 488,615.78/x
  3. Step 3: Cross multiply
    832,816.10x = 1,149,216.32 × 488,615.78
  4. Step 4: Simplify right side
    832,816.10x = 561,525,232,680.11
  5. Step 5: Solve for x
    x = 561,525,232,680.11/832,816.10
  6. Step 6: Final answer
    x = 674,248.77

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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.