Home / 867,813.20-1,301,719.80-553,662.80

Finding the Fourth Proportional to 867,813.20, 1,301,719.80 and 553,662.80

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Solution

The fourth proportional to 867,813.20, 1,301,719.80 and 553,662.80 is: 830,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,813.20 : 1,301,719.80 = 553,662.80 : x
  2. Step 2: Convert to fraction form
    867,813.20/1,301,719.80 = 553,662.80/x
  3. Step 3: Cross multiply
    867,813.20x = 1,301,719.80 × 553,662.80
  4. Step 4: Simplify right side
    867,813.20x = 720,713,829,283.44
  5. Step 5: Solve for x
    x = 720,713,829,283.44/867,813.20
  6. Step 6: Final answer
    x = 830,494.20

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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.