Home / 521,024.16-718,822.32-316,991.52

Finding the Fourth Proportional to 521,024.16, 718,822.32 and 316,991.52

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Solution

The fourth proportional to 521,024.16, 718,822.32 and 316,991.52 is: 437,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,024.16 : 718,822.32 = 316,991.52 : x
  2. Step 2: Convert to fraction form
    521,024.16/718,822.32 = 316,991.52/x
  3. Step 3: Cross multiply
    521,024.16x = 718,822.32 × 316,991.52
  4. Step 4: Simplify right side
    521,024.16x = 227,860,579,826.73
  5. Step 5: Solve for x
    x = 227,860,579,826.73/521,024.16
  6. Step 6: Final answer
    x = 437,332.08

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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.