Home / 1,007,909.64-1,390,814.28-620,663.04

Finding the Fourth Proportional to 1,007,909.64, 1,390,814.28 and 620,663.04

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Solution

The fourth proportional to 1,007,909.64, 1,390,814.28 and 620,663.04 is: 856,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,909.64 : 1,390,814.28 = 620,663.04 : x
  2. Step 2: Convert to fraction form
    1,007,909.64/1,390,814.28 = 620,663.04/x
  3. Step 3: Cross multiply
    1,007,909.64x = 1,390,814.28 × 620,663.04
  4. Step 4: Simplify right side
    1,007,909.64x = 863,227,019,100.21
  5. Step 5: Solve for x
    x = 863,227,019,100.21/1,007,909.64
  6. Step 6: Final answer
    x = 856,452.79

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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.