Home / 826,623.40-1,239,935.10-742,642.60

Finding the Fourth Proportional to 826,623.40, 1,239,935.10 and 742,642.60

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Solution

The fourth proportional to 826,623.40, 1,239,935.10 and 742,642.60 is: 1,113,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,623.40 : 1,239,935.10 = 742,642.60 : x
  2. Step 2: Convert to fraction form
    826,623.40/1,239,935.10 = 742,642.60/x
  3. Step 3: Cross multiply
    826,623.40x = 1,239,935.10 × 742,642.60
  4. Step 4: Simplify right side
    826,623.40x = 920,828,626,495.26
  5. Step 5: Solve for x
    x = 920,828,626,495.26/826,623.40
  6. Step 6: Final answer
    x = 1,113,963.90

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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.