Home / 660,493.32-990,427.64-255,875.04

Finding the Fourth Proportional to 660,493.32, 990,427.64 and 255,875.04

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Solution

The fourth proportional to 660,493.32, 990,427.64 and 255,875.04 is: 383,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,493.32 : 990,427.64 = 255,875.04 : x
  2. Step 2: Convert to fraction form
    660,493.32/990,427.64 = 255,875.04/x
  3. Step 3: Cross multiply
    660,493.32x = 990,427.64 × 255,875.04
  4. Step 4: Simplify right side
    660,493.32x = 253,425,712,002.11
  5. Step 5: Solve for x
    x = 253,425,712,002.11/660,493.32
  6. Step 6: Final answer
    x = 383,691.56

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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.