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Finding the Fourth Proportional to 570,206.70, 786,887.34 and 308,562.03

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Solution

The fourth proportional to 570,206.70, 786,887.34 and 308,562.03 is: 425,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,206.70 : 786,887.34 = 308,562.03 : x
  2. Step 2: Convert to fraction form
    570,206.70/786,887.34 = 308,562.03/x
  3. Step 3: Cross multiply
    570,206.70x = 786,887.34 × 308,562.03
  4. Step 4: Simplify right side
    570,206.70x = 242,803,555,011.70
  5. Step 5: Solve for x
    x = 242,803,555,011.70/570,206.70
  6. Step 6: Final answer
    x = 425,816.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.