Home / 948,373.54-1,308,774.58-518,681.30

Finding the Fourth Proportional to 948,373.54, 1,308,774.58 and 518,681.30

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Solution

The fourth proportional to 948,373.54, 1,308,774.58 and 518,681.30 is: 715,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,373.54 : 1,308,774.58 = 518,681.30 : x
  2. Step 2: Convert to fraction form
    948,373.54/1,308,774.58 = 518,681.30/x
  3. Step 3: Cross multiply
    948,373.54x = 1,308,774.58 × 518,681.30
  4. Step 4: Simplify right side
    948,373.54x = 678,836,892,720.78
  5. Step 5: Solve for x
    x = 678,836,892,720.78/948,373.54
  6. Step 6: Final answer
    x = 715,790.63

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Double scale
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Similar ratio
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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.