Home / 478,130.83-659,835.06-263,278.58

Finding the Fourth Proportional to 478,130.83, 659,835.06 and 263,278.58

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Solution

The fourth proportional to 478,130.83, 659,835.06 and 263,278.58 is: 363,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,130.83 : 659,835.06 = 263,278.58 : x
  2. Step 2: Convert to fraction form
    478,130.83/659,835.06 = 263,278.58/x
  3. Step 3: Cross multiply
    478,130.83x = 659,835.06 × 263,278.58
  4. Step 4: Simplify right side
    478,130.83x = 173,720,437,631.02
  5. Step 5: Solve for x
    x = 173,720,437,631.02/478,130.83
  6. Step 6: Final answer
    x = 363,332.43

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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.