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Finding the Fourth Proportional to 478,859.58, 660,830.70 and 264,007.34

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Solution

The fourth proportional to 478,859.58, 660,830.70 and 264,007.34 is: 364,332.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,859.58 : 660,830.70 = 264,007.34 : x
  2. Step 2: Convert to fraction form
    478,859.58/660,830.70 = 264,007.34/x
  3. Step 3: Cross multiply
    478,859.58x = 660,830.70 × 264,007.34
  4. Step 4: Simplify right side
    478,859.58x = 174,464,151,993.19
  5. Step 5: Solve for x
    x = 174,464,151,993.19/478,859.58
  6. Step 6: Final answer
    x = 364,332.59

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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.