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Finding the Fourth Proportional to 520,795.84, 780,389.82 and 351,653.32

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Solution

The fourth proportional to 520,795.84, 780,389.82 and 351,653.32 is: 526,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,795.84 : 780,389.82 = 351,653.32 : x
  2. Step 2: Convert to fraction form
    520,795.84/780,389.82 = 351,653.32/x
  3. Step 3: Cross multiply
    520,795.84x = 780,389.82 × 351,653.32
  4. Step 4: Simplify right side
    520,795.84x = 274,426,671,097.20
  5. Step 5: Solve for x
    x = 274,426,671,097.20/520,795.84
  6. Step 6: Final answer
    x = 526,937.14

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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.