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Finding the Fourth Proportional to 520,584.23, 716,916.27 and 488,144.95

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Solution

The fourth proportional to 520,584.23, 716,916.27 and 488,144.95 is: 672,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,584.23 : 716,916.27 = 488,144.95 : x
  2. Step 2: Convert to fraction form
    520,584.23/716,916.27 = 488,144.95/x
  3. Step 3: Cross multiply
    520,584.23x = 716,916.27 × 488,144.95
  4. Step 4: Simplify right side
    520,584.23x = 349,959,054,065.77
  5. Step 5: Solve for x
    x = 349,959,054,065.77/520,584.23
  6. Step 6: Final answer
    x = 672,242.90

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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.