Home / 648,965.40-972,126.12-529,448.28

Finding the Fourth Proportional to 648,965.40, 972,126.12 and 529,448.28

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Solution

The fourth proportional to 648,965.40, 972,126.12 and 529,448.28 is: 793,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,965.40 : 972,126.12 = 529,448.28 : x
  2. Step 2: Convert to fraction form
    648,965.40/972,126.12 = 529,448.28/x
  3. Step 3: Cross multiply
    648,965.40x = 972,126.12 × 529,448.28
  4. Step 4: Simplify right side
    648,965.40x = 514,690,502,177.07
  5. Step 5: Solve for x
    x = 514,690,502,177.07/648,965.40
  6. Step 6: Final answer
    x = 793,093.90

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Double scale
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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.