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Finding the Fourth Proportional to 478,627.30, 660,510.18 and 263,775.22

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Solution

The fourth proportional to 478,627.30, 660,510.18 and 263,775.22 is: 364,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,627.30 : 660,510.18 = 263,775.22 : x
  2. Step 2: Convert to fraction form
    478,627.30/660,510.18 = 263,775.22/x
  3. Step 3: Cross multiply
    478,627.30x = 660,510.18 × 263,775.22
  4. Step 4: Simplify right side
    478,627.30x = 174,226,218,041.74
  5. Step 5: Solve for x
    x = 174,226,218,041.74/478,627.30
  6. Step 6: Final answer
    x = 364,012.29

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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.