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Finding the Fourth Proportional to 478,875.73, 660,161.61 and 376,723.64

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Solution

The fourth proportional to 478,875.73, 660,161.61 and 376,723.64 is: 519,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,875.73 : 660,161.61 = 376,723.64 : x
  2. Step 2: Convert to fraction form
    478,875.73/660,161.61 = 376,723.64/x
  3. Step 3: Cross multiply
    478,875.73x = 660,161.61 × 376,723.64
  4. Step 4: Simplify right side
    478,875.73x = 248,698,486,357.86
  5. Step 5: Solve for x
    x = 248,698,486,357.86/478,875.73
  6. Step 6: Final answer
    x = 519,338.26

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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.