Home / 1,289,096.63-1,779,117.37-779,802.65

Finding the Fourth Proportional to 1,289,096.63, 1,779,117.37 and 779,802.65

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Solution

The fourth proportional to 1,289,096.63, 1,779,117.37 and 779,802.65 is: 1,076,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,096.63 : 1,779,117.37 = 779,802.65 : x
  2. Step 2: Convert to fraction form
    1,289,096.63/1,779,117.37 = 779,802.65/x
  3. Step 3: Cross multiply
    1,289,096.63x = 1,779,117.37 × 779,802.65
  4. Step 4: Simplify right side
    1,289,096.63x = 1,387,360,439,787.03
  5. Step 5: Solve for x
    x = 1,387,360,439,787.03/1,289,096.63
  6. Step 6: Final answer
    x = 1,076,226.88

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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.