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Finding the Fourth Proportional to 520,333.84, 718,176.63 and 316,341.64

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Solution

The fourth proportional to 520,333.84, 718,176.63 and 316,341.64 is: 436,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,333.84 : 718,176.63 = 316,341.64 : x
  2. Step 2: Convert to fraction form
    520,333.84/718,176.63 = 316,341.64/x
  3. Step 3: Cross multiply
    520,333.84x = 718,176.63 × 316,341.64
  4. Step 4: Simplify right side
    520,333.84x = 227,189,172,943.87
  5. Step 5: Solve for x
    x = 227,189,172,943.87/520,333.84
  6. Step 6: Final answer
    x = 436,621.94

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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.