Home / 1,047,222.96-1,445,323.95-639,559.28

Finding the Fourth Proportional to 1,047,222.96, 1,445,323.95 and 639,559.28

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Solution

The fourth proportional to 1,047,222.96, 1,445,323.95 and 639,559.28 is: 882,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,222.96 : 1,445,323.95 = 639,559.28 : x
  2. Step 2: Convert to fraction form
    1,047,222.96/1,445,323.95 = 639,559.28/x
  3. Step 3: Cross multiply
    1,047,222.96x = 1,445,323.95 × 639,559.28
  4. Step 4: Simplify right side
    1,047,222.96x = 924,370,337,602.14
  5. Step 5: Solve for x
    x = 924,370,337,602.14/1,047,222.96
  6. Step 6: Final answer
    x = 882,687.23

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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.