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Finding the Fourth Proportional to 520,585.23, 716,917.65 and 488,145.95

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Solution

The fourth proportional to 520,585.23, 716,917.65 and 488,145.95 is: 672,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,585.23 : 716,917.65 = 488,145.95 : x
  2. Step 2: Convert to fraction form
    520,585.23/716,917.65 = 488,145.95/x
  3. Step 3: Cross multiply
    520,585.23x = 716,917.65 × 488,145.95
  4. Step 4: Simplify right side
    520,585.23x = 349,960,447,331.02
  5. Step 5: Solve for x
    x = 349,960,447,331.02/520,585.23
  6. Step 6: Final answer
    x = 672,244.29

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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.