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Finding the Fourth Proportional to 317,602.52, 478,305.22 and 289,259.00

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Solution

The fourth proportional to 317,602.52, 478,305.22 and 289,259.00 is: 435,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,602.52 : 478,305.22 = 289,259.00 : x
  2. Step 2: Convert to fraction form
    317,602.52/478,305.22 = 289,259.00/x
  3. Step 3: Cross multiply
    317,602.52x = 478,305.22 × 289,259.00
  4. Step 4: Simplify right side
    317,602.52x = 138,354,090,646.96
  5. Step 5: Solve for x
    x = 138,354,090,646.96/317,602.52
  6. Step 6: Final answer
    x = 435,620.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.