Home / 1,145,792.96-1,581,140.64-636,526.40

Finding the Fourth Proportional to 1,145,792.96, 1,581,140.64 and 636,526.40

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Solution

The fourth proportional to 1,145,792.96, 1,581,140.64 and 636,526.40 is: 878,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,792.96 : 1,581,140.64 = 636,526.40 : x
  2. Step 2: Convert to fraction form
    1,145,792.96/1,581,140.64 = 636,526.40/x
  3. Step 3: Cross multiply
    1,145,792.96x = 1,581,140.64 × 636,526.40
  4. Step 4: Simplify right side
    1,145,792.96x = 1,006,437,759,472.90
  5. Step 5: Solve for x
    x = 1,006,437,759,472.90/1,145,792.96
  6. Step 6: Final answer
    x = 878,376.63

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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.