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Finding the Fourth Proportional to 520,608.26, 718,492.40 and 316,673.24

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Solution

The fourth proportional to 520,608.26, 718,492.40 and 316,673.24 is: 437,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,608.26 : 718,492.40 = 316,673.24 : x
  2. Step 2: Convert to fraction form
    520,608.26/718,492.40 = 316,673.24/x
  3. Step 3: Cross multiply
    520,608.26x = 718,492.40 × 316,673.24
  4. Step 4: Simplify right side
    520,608.26x = 227,527,316,223.38
  5. Step 5: Solve for x
    x = 227,527,316,223.38/520,608.26
  6. Step 6: Final answer
    x = 437,041.31

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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.