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Finding the Fourth Proportional to 439,064.30, 657,612.30 and 360,332.30

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Solution

The fourth proportional to 439,064.30, 657,612.30 and 360,332.30 is: 539,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,064.30 : 657,612.30 = 360,332.30 : x
  2. Step 2: Convert to fraction form
    439,064.30/657,612.30 = 360,332.30/x
  3. Step 3: Cross multiply
    439,064.30x = 657,612.30 × 360,332.30
  4. Step 4: Simplify right side
    439,064.30x = 236,958,952,567.29
  5. Step 5: Solve for x
    x = 236,958,952,567.29/439,064.30
  6. Step 6: Final answer
    x = 539,690.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.