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Finding the Fourth Proportional to 648,007.40, 968,900.70 and 480,045.80

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Solution

The fourth proportional to 648,007.40, 968,900.70 and 480,045.80 is: 717,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,007.40 : 968,900.70 = 480,045.80 : x
  2. Step 2: Convert to fraction form
    648,007.40/968,900.70 = 480,045.80/x
  3. Step 3: Cross multiply
    648,007.40x = 968,900.70 × 480,045.80
  4. Step 4: Simplify right side
    648,007.40x = 465,116,711,652.06
  5. Step 5: Solve for x
    x = 465,116,711,652.06/648,007.40
  6. Step 6: Final answer
    x = 717,764.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.