Home / 1,167,159.55-1,610,681.72-643,858.36

Finding the Fourth Proportional to 1,167,159.55, 1,610,681.72 and 643,858.36

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Solution

The fourth proportional to 1,167,159.55, 1,610,681.72 and 643,858.36 is: 888,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,159.55 : 1,610,681.72 = 643,858.36 : x
  2. Step 2: Convert to fraction form
    1,167,159.55/1,610,681.72 = 643,858.36/x
  3. Step 3: Cross multiply
    1,167,159.55x = 1,610,681.72 × 643,858.36
  4. Step 4: Simplify right side
    1,167,159.55x = 1,037,050,883,475.18
  5. Step 5: Solve for x
    x = 1,037,050,883,475.18/1,167,159.55
  6. Step 6: Final answer
    x = 888,525.38

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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.