Home / 948,440.72-1,308,876.36-518,713.04

Finding the Fourth Proportional to 948,440.72, 1,308,876.36 and 518,713.04

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Solution

The fourth proportional to 948,440.72, 1,308,876.36 and 518,713.04 is: 715,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,440.72 : 1,308,876.36 = 518,713.04 : x
  2. Step 2: Convert to fraction form
    948,440.72/1,308,876.36 = 518,713.04/x
  3. Step 3: Cross multiply
    948,440.72x = 1,308,876.36 × 518,713.04
  4. Step 4: Simplify right side
    948,440.72x = 678,931,235,679.73
  5. Step 5: Solve for x
    x = 678,931,235,679.73/948,440.72
  6. Step 6: Final answer
    x = 715,839.40

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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.