Home / 458,472,534.80-687,708,802.20-408,308,003.60

Finding the Fourth Proportional to 458,472,534.80, 687,708,802.20 and 408,308,003.60

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Solution

The fourth proportional to 458,472,534.80, 687,708,802.20 and 408,308,003.60 is: 612,462,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,472,534.80 : 687,708,802.20 = 408,308,003.60 : x
  2. Step 2: Convert to fraction form
    458,472,534.80/687,708,802.20 = 408,308,003.60/x
  3. Step 3: Cross multiply
    458,472,534.80x = 687,708,802.20 × 408,308,003.60
  4. Step 4: Simplify right side
    458,472,534.80x = 280,797,008,084,429,312
  5. Step 5: Solve for x
    x = 280,797,008,084,429,312/458,472,534.80
  6. Step 6: Final answer
    x = 612,462,005.40

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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.