Home / 1,145,836.67-1,580,661.61-778,332.71

Finding the Fourth Proportional to 1,145,836.67, 1,580,661.61 and 778,332.71

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Solution

The fourth proportional to 1,145,836.67, 1,580,661.61 and 778,332.71 is: 1,073,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,836.67 : 1,580,661.61 = 778,332.71 : x
  2. Step 2: Convert to fraction form
    1,145,836.67/1,580,661.61 = 778,332.71/x
  3. Step 3: Cross multiply
    1,145,836.67x = 1,580,661.61 × 778,332.71
  4. Step 4: Simplify right side
    1,145,836.67x = 1,230,280,636,510.09
  5. Step 5: Solve for x
    x = 1,230,280,636,510.09/1,145,836.67
  6. Step 6: Final answer
    x = 1,073,696.34

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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.