Home / 948,018.64-1,308,266.44-518,291.92

Finding the Fourth Proportional to 948,018.64, 1,308,266.44 and 518,291.92

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Solution

The fourth proportional to 948,018.64, 1,308,266.44 and 518,291.92 is: 715,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,018.64 : 1,308,266.44 = 518,291.92 : x
  2. Step 2: Convert to fraction form
    948,018.64/1,308,266.44 = 518,291.92/x
  3. Step 3: Cross multiply
    948,018.64x = 1,308,266.44 × 518,291.92
  4. Step 4: Simplify right side
    948,018.64x = 678,063,925,059.17
  5. Step 5: Solve for x
    x = 678,063,925,059.17/948,018.64
  6. Step 6: Final answer
    x = 715,243.24

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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.