Home / 917,742.24-1,266,343.94-509,806.60

Finding the Fourth Proportional to 917,742.24, 1,266,343.94 and 509,806.60

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Solution

The fourth proportional to 917,742.24, 1,266,343.94 and 509,806.60 is: 703,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,742.24 : 1,266,343.94 = 509,806.60 : x
  2. Step 2: Convert to fraction form
    917,742.24/1,266,343.94 = 509,806.60/x
  3. Step 3: Cross multiply
    917,742.24x = 1,266,343.94 × 509,806.60
  4. Step 4: Simplify right side
    917,742.24x = 645,590,498,482.00
  5. Step 5: Solve for x
    x = 645,590,498,482.00/917,742.24
  6. Step 6: Final answer
    x = 703,455.14

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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.