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Finding the Fourth Proportional to 478,775.36, 660,714.44 and 263,923.13

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Solution

The fourth proportional to 478,775.36, 660,714.44 and 263,923.13 is: 364,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,775.36 : 660,714.44 = 263,923.13 : x
  2. Step 2: Convert to fraction form
    478,775.36/660,714.44 = 263,923.13/x
  3. Step 3: Cross multiply
    478,775.36x = 660,714.44 × 263,923.13
  4. Step 4: Simplify right side
    478,775.36x = 174,377,818,417.81
  5. Step 5: Solve for x
    x = 174,377,818,417.81/478,775.36
  6. Step 6: Final answer
    x = 364,216.36

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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.