Home / 1,078,555.31-1,488,495.63-619,759.01

Finding the Fourth Proportional to 1,078,555.31, 1,488,495.63 and 619,759.01

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Solution

The fourth proportional to 1,078,555.31, 1,488,495.63 and 619,759.01 is: 855,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,555.31 : 1,488,495.63 = 619,759.01 : x
  2. Step 2: Convert to fraction form
    1,078,555.31/1,488,495.63 = 619,759.01/x
  3. Step 3: Cross multiply
    1,078,555.31x = 1,488,495.63 × 619,759.01
  4. Step 4: Simplify right side
    1,078,555.31x = 922,508,570,595.65
  5. Step 5: Solve for x
    x = 922,508,570,595.65/1,078,555.31
  6. Step 6: Final answer
    x = 855,318.75

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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.