Home / 1,021,527.86-1,409,033.48-638,890.34

Finding the Fourth Proportional to 1,021,527.86, 1,409,033.48 and 638,890.34

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Solution

The fourth proportional to 1,021,527.86, 1,409,033.48 and 638,890.34 is: 881,246.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,527.86 : 1,409,033.48 = 638,890.34 : x
  2. Step 2: Convert to fraction form
    1,021,527.86/1,409,033.48 = 638,890.34/x
  3. Step 3: Cross multiply
    1,021,527.86x = 1,409,033.48 × 638,890.34
  4. Step 4: Simplify right side
    1,021,527.86x = 900,217,868,868.96
  5. Step 5: Solve for x
    x = 900,217,868,868.96/1,021,527.86
  6. Step 6: Final answer
    x = 881,246.52

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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.