Home / 648,109.70-972,164.55-530,011.70

Finding the Fourth Proportional to 648,109.70, 972,164.55 and 530,011.70

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Solution

The fourth proportional to 648,109.70, 972,164.55 and 530,011.70 is: 795,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,109.70 : 972,164.55 = 530,011.70 : x
  2. Step 2: Convert to fraction form
    648,109.70/972,164.55 = 530,011.70/x
  3. Step 3: Cross multiply
    648,109.70x = 972,164.55 × 530,011.70
  4. Step 4: Simplify right side
    648,109.70x = 515,258,585,825.24
  5. Step 5: Solve for x
    x = 515,258,585,825.24/648,109.70
  6. Step 6: Final answer
    x = 795,017.55

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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.