Home / 948,088.32-1,308,380.76-518,395.20

Finding the Fourth Proportional to 948,088.32, 1,308,380.76 and 518,395.20

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Solution

The fourth proportional to 948,088.32, 1,308,380.76 and 518,395.20 is: 715,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,088.32 : 1,308,380.76 = 518,395.20 : x
  2. Step 2: Convert to fraction form
    948,088.32/1,308,380.76 = 518,395.20/x
  3. Step 3: Cross multiply
    948,088.32x = 1,308,380.76 × 518,395.20
  4. Step 4: Simplify right side
    948,088.32x = 678,258,305,756.35
  5. Step 5: Solve for x
    x = 678,258,305,756.35/948,088.32
  6. Step 6: Final answer
    x = 715,395.70

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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.