Home / 711,511.90-1,066,903.05-212,811.10

Finding the Fourth Proportional to 711,511.90, 1,066,903.05 and 212,811.10

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Solution

The fourth proportional to 711,511.90, 1,066,903.05 and 212,811.10 is: 319,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,511.90 : 1,066,903.05 = 212,811.10 : x
  2. Step 2: Convert to fraction form
    711,511.90/1,066,903.05 = 212,811.10/x
  3. Step 3: Cross multiply
    711,511.90x = 1,066,903.05 × 212,811.10
  4. Step 4: Simplify right side
    711,511.90x = 227,048,811,663.86
  5. Step 5: Solve for x
    x = 227,048,811,663.86/711,511.90
  6. Step 6: Final answer
    x = 319,107.54

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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.