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Finding the Fourth Proportional to 478,870.43, 660,880.58 and 264,030.89

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Solution

The fourth proportional to 478,870.43, 660,880.58 and 264,030.89 is: 364,384.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,870.43 : 660,880.58 = 264,030.89 : x
  2. Step 2: Convert to fraction form
    478,870.43/660,880.58 = 264,030.89/x
  3. Step 3: Cross multiply
    478,870.43x = 660,880.58 × 264,030.89
  4. Step 4: Simplify right side
    478,870.43x = 174,492,883,096.56
  5. Step 5: Solve for x
    x = 174,492,883,096.56/478,870.43
  6. Step 6: Final answer
    x = 364,384.34

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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.