Home / 657,929.16-986,098.44-320,464.20

Finding the Fourth Proportional to 657,929.16, 986,098.44 and 320,464.20

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Solution

The fourth proportional to 657,929.16, 986,098.44 and 320,464.20 is: 480,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,929.16 : 986,098.44 = 320,464.20 : x
  2. Step 2: Convert to fraction form
    657,929.16/986,098.44 = 320,464.20/x
  3. Step 3: Cross multiply
    657,929.16x = 986,098.44 × 320,464.20
  4. Step 4: Simplify right side
    657,929.16x = 316,009,247,695.85
  5. Step 5: Solve for x
    x = 316,009,247,695.85/657,929.16
  6. Step 6: Final answer
    x = 480,308.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.