Home / 970,821.70-1,455,714.15-409,221.70

Finding the Fourth Proportional to 970,821.70, 1,455,714.15 and 409,221.70

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Solution

The fourth proportional to 970,821.70, 1,455,714.15 and 409,221.70 is: 613,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,821.70 : 1,455,714.15 = 409,221.70 : x
  2. Step 2: Convert to fraction form
    970,821.70/1,455,714.15 = 409,221.70/x
  3. Step 3: Cross multiply
    970,821.70x = 1,455,714.15 × 409,221.70
  4. Step 4: Simplify right side
    970,821.70x = 595,709,819,177.06
  5. Step 5: Solve for x
    x = 595,709,819,177.06/970,821.70
  6. Step 6: Final answer
    x = 613,614.03

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1.5x scale

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.