Home / 648,004.20-972,006.30-480,698.70

Finding the Fourth Proportional to 648,004.20, 972,006.30 and 480,698.70

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Solution

The fourth proportional to 648,004.20, 972,006.30 and 480,698.70 is: 721,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,004.20 : 972,006.30 = 480,698.70 : x
  2. Step 2: Convert to fraction form
    648,004.20/972,006.30 = 480,698.70/x
  3. Step 3: Cross multiply
    648,004.20x = 972,006.30 × 480,698.70
  4. Step 4: Simplify right side
    648,004.20x = 467,242,164,801.81
  5. Step 5: Solve for x
    x = 467,242,164,801.81/648,004.20
  6. Step 6: Final answer
    x = 721,048.05

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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.