Home / 1,309,824.10-1,964,985.84-457,139.32

Finding the Fourth Proportional to 1,309,824.10, 1,964,985.84 and 457,139.32

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Solution

The fourth proportional to 1,309,824.10, 1,964,985.84 and 457,139.32 is: 685,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,824.10 : 1,964,985.84 = 457,139.32 : x
  2. Step 2: Convert to fraction form
    1,309,824.10/1,964,985.84 = 457,139.32/x
  3. Step 3: Cross multiply
    1,309,824.10x = 1,964,985.84 × 457,139.32
  4. Step 4: Simplify right side
    1,309,824.10x = 898,272,290,707.23
  5. Step 5: Solve for x
    x = 898,272,290,707.23/1,309,824.10
  6. Step 6: Final answer
    x = 685,796.12

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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.