Home / 648,949.15-972,065.96-521,902.68

Finding the Fourth Proportional to 648,949.15, 972,065.96 and 521,902.68

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Solution

The fourth proportional to 648,949.15, 972,065.96 and 521,902.68 is: 781,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,949.15 : 972,065.96 = 521,902.68 : x
  2. Step 2: Convert to fraction form
    648,949.15/972,065.96 = 521,902.68/x
  3. Step 3: Cross multiply
    648,949.15x = 972,065.96 × 521,902.68
  4. Step 4: Simplify right side
    648,949.15x = 507,323,828,298.85
  5. Step 5: Solve for x
    x = 507,323,828,298.85/648,949.15
  6. Step 6: Final answer
    x = 781,762.06

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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.