Home / 1,185,386.76-1,776,284.04-784,591.65

Finding the Fourth Proportional to 1,185,386.76, 1,776,284.04 and 784,591.65

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Solution

The fourth proportional to 1,185,386.76, 1,776,284.04 and 784,591.65 is: 1,175,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,386.76 : 1,776,284.04 = 784,591.65 : x
  2. Step 2: Convert to fraction form
    1,185,386.76/1,776,284.04 = 784,591.65/x
  3. Step 3: Cross multiply
    1,185,386.76x = 1,776,284.04 × 784,591.65
  4. Step 4: Simplify right side
    1,185,386.76x = 1,393,657,625,812.27
  5. Step 5: Solve for x
    x = 1,393,657,625,812.27/1,185,386.76
  6. Step 6: Final answer
    x = 1,175,698.66

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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.