Home / 1,005,053.80-1,504,956.30-648,135.40

Finding the Fourth Proportional to 1,005,053.80, 1,504,956.30 and 648,135.40

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Solution

The fourth proportional to 1,005,053.80, 1,504,956.30 and 648,135.40 is: 970,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,053.80 : 1,504,956.30 = 648,135.40 : x
  2. Step 2: Convert to fraction form
    1,005,053.80/1,504,956.30 = 648,135.40/x
  3. Step 3: Cross multiply
    1,005,053.80x = 1,504,956.30 × 648,135.40
  4. Step 4: Simplify right side
    1,005,053.80x = 975,415,453,483.02
  5. Step 5: Solve for x
    x = 975,415,453,483.02/1,005,053.80
  6. Step 6: Final answer
    x = 970,510.69

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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.