Home / 910,242.64-1,365,312.84-279,154.72

Finding the Fourth Proportional to 910,242.64, 1,365,312.84 and 279,154.72

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Solution

The fourth proportional to 910,242.64, 1,365,312.84 and 279,154.72 is: 418,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,242.64 : 1,365,312.84 = 279,154.72 : x
  2. Step 2: Convert to fraction form
    910,242.64/1,365,312.84 = 279,154.72/x
  3. Step 3: Cross multiply
    910,242.64x = 1,365,312.84 × 279,154.72
  4. Step 4: Simplify right side
    910,242.64x = 381,133,523,562.61
  5. Step 5: Solve for x
    x = 381,133,523,562.61/910,242.64
  6. Step 6: Final answer
    x = 418,716.40

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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.